It is a bit embarrassing to have been concerned with the human problem all one’s life and find at the end that one has no more to offer by way of advice than “Try to be a little kinder.”

Aldous Huxley (1894-1963) English novelist, essayist and critic

(Attributed)

Widely quoted but without a good citation. Variant: "It is a little embarrassing that, after 45 years of research and study, the best advice I can give to people is to be a little kinder to each other." This version was quoted by his wife, Laura Huxley, in the biography This Timeless Moment (1968).