The sheer scope of Kennedy’s work is simply staggering. The beneficiaries of his achievement numbered in the many millions. They were poor, elderly, women, gays, minorities, immigrants, veterans, students, workers, the disabled, the mentally ill and, perhaps above all, children. To catalog the landmark bills that he sponsored and managed into law is a challenge; to enumerate his entire achievement may be virtually impossible.

Drawing up lists of bills and amendments is inevitably a dry exercise, but it is Kennedy’s spirit of compassion that lives in every human being touched by those laws. The homage we owe him is to honor his bedrock belief that government must lift up the oppressed and defend the defenseless.

Nothing was more important to him than bringing government power and resources to the assistance of families and children in or near poverty. As a young senator he helped to start the Legal Services Corporation that advanced the interests of the poor in court, and then defended that institution from the Reaganite plan to destroy it. Year after year, he fought to increase the minimum wage, even when the Republicans were in power and there was no chance that an increase would pass. He led every effort to extend and increase unemployment benefits from one recession to the next, often at times when the unemployed seemed invisible to most of society. Last year, while suffering from the cancer that killed him, he pushed through another 20 weeks of compensation to workers who had lost their jobs in the recession.

He was an unabashed supporter of workers’ right to organize, as the chief sponsor of the Employee Free Choice Act, and a keen defender of contractual rights as well. He led the fight for passage of the Family and Medical Leave Act, the Clinton administration bill that guaranteed unpaid leave to employees needing time to care for a new baby or the serious illness of a child, parent or spouse. Three years ago, he sponsored the Pension Protection Act, regarded as the most significant pension bill in the past 30 years.

Back in 1989, Kennedy helped to pass the National Military Child Care Act, which established the Defense Department child care system that continues to be among the finest in the country. Ten years later, he established federal funding for the training of pediatricians and pediatric specialists — the tongue-twisting Children’s Hospitals Graduate Medical Education Program, or CHGME — which rectified the financial shortchanging of children’s hospitals and research facilities by the Medicare reimbursement system (and helped to educate thousands of doctors who heal kids).

Much better known, of course, was his long battle for the Children’s Health Insurance Program, known as CHIP or SCHIP, which has provided healthcare to millions of low-income children whose families could not afford insurance or qualify for Medicaid. Legislation or amendments he wrote were responsible for creation of the Early Head Start program, which provides prenatal services and early childhood development assistance to pregnant women and to low-income families with children under 3 years of age; the Women, Infants and Children (WIC) program that subsidizes adequate food and nutrition counseling for millions of low-income mothers, their infants and young children; and the COBRA program that permits workers to temporarily continue receiving health insurance when they are laid off or fired from their jobs. With the cosponsorship of Charles Grassley, the dim Iowa Republican who now seems determined to kill healthcare reform, he passed the Family Opportunity Act in 2006, which enabled working families to purchase Medicaid insurance for their disabled children, rather than lose healthcare when their wages went up.

The summary above does not begin to dent, let alone exhaust, Kennedy’s legislative attainments. A list of his landmarks would begin with the Immigration and Nationality Act of 1965, passed when he was still a freshman, which eliminated discriminatory ethnic quotas for immigrants. That list would have to include well over a dozen education and civil rights bills, notably the Pell Grants (named for his collaborator, the late Sen. Claiborne Pell, D-R.I.), the reauthorizations of the Voting Rights Act and the Elementary and Secondary Education Act, the Star Schools Assistance Act for Math and Science Education, the College Cost Reduction Act, the Higher Education Act, the National Service Act (which created the AmeriCorps program), and the Education for All Handicapped Children Act.

While the bulk of Kennedy’s achievements lie in domestic policy, his contributions to democracy at home and abroad shouldn’t be slighted. He wrote the Foreign Intelligence Surveillance Act, which protects Americans from illicit eavesdropping and wiretapping by intelligence agencies, and he coauthored the first post-Watergate bills that provided public financing for presidential elections and established limits on political contributions in presidential campaigns. He sponsored the bill that lowered the national voting age from 21 to 18, because he believed that anyone old enough to serve in war must be old enough to vote. He was a leading opponent of apartheid in South Africa, a dedicated foe of dictatorships in countries ranging from South Korea to Chile, and an early, courageous opponent of the war in Iraq.

In all of these endeavors, Kennedy fashioned coalitions when he could, and he acted alone when he had no other choice. Looking over the sponsors of the bills that he passed, it is striking to see how many times he was able to persuade a very conservative Republican to join him on the side of progress.

It is true that Kennedy, the friendly warrior, excelled in bipartisanship. Nearly all of the domestic reforms mentioned here were sponsored by at least one Republican senator. But in every case, those stodgy conservatives were cajoled and whispered (and perhaps shamed) into venturing much closer to Kennedy’s perspective. He drew them toward him, invariably against their own habits, not by selling out his progressive goal, but by appealing to the decency he perceived in them.

Forty years ago he began the quest for universal healthcare that became the cause of his life when he introduced his first bill outlining that goal. His final bequest to the Senate is the Affordable Health Choices Act, his version of the Obama administration’s reform proposals, which was passed by the Health, Education, Labor and Pensions Committee last month. Republicans now say that if Kennedy had not been forced by illness to relinquish the chairmanship of that committee, he would have negotiated away the strongest provisions of that bill to win passage.

Kennedy’s Republican friends should not make that disingenuous argument in his lamented absence. Lest there be any doubt about what he truly wanted, his bill includes a robust public option along with all the insurance reforms and cost controls that the president has endorsed since this process began.

How would he have handled the intransigence and dishonesty of the Republican opposition? We know that he could shout as well as whisper — and that he could be partisan as well as bipartisan. He believed that the time for incremental changes had passed. He was ready to fight. The tragedy of his death is not only that he didn’t see the triumph he had dreamed, but that he fell before he could lead the nation to that final victory. Now that victory will have to be won in his name.