Bertrand Russell (1872–1970) was a British philosopher, logician, and public intellectual whose work ranged from mathematics and philosophy to politics and social criticism. He received the Nobel Prize in Literature in 1950. The saying’s opening sentence is associated with his 1925 essay “What I Believe,” where Russell writes, “The good life is one inspired by love and guided by knowledge.”
The version presented here adds that a good life is “tempered by wisdom gained through years of experience.” That final phrase is not part of the familiar sentence in Russell’s essay, and its source is uncertain. It is best understood as an addition to a reliably attributed core rather than as wording confirmed from Russell’s original text.
The thought brings together qualities that can seem to pull in different directions. Love supplies care and concern for others; knowledge helps us see the world clearly and choose our actions wisely. The added idea of experience suggests that good judgment develops over time, as reflection turns mistakes and successes into perspective. Together, these elements offer a humane measure of a worthwhile life—not simply achievement or pleasure, but feeling deeply, thinking clearly, and learning how to live with greater care.