One of the deep secrets of life is that all that is really worth the doing is what we do for others.
What It Means
This is a placeholder explanation generated by the low-overhead model. It interprets "One of the deep secrets of life is that all that is really worth the doing is what we do for others." in the context of "This is a paraphrase of statement in a thank you note from Carroll to a childhood friend, the actress Ellen Terry, published in Ellen Terry, Player in Her Time (1997), p. 126 by Nina Auerbach: "... and so you have found out that secret — one of the deep secrets of Life — that all, that is really worth the doing, is what we do for others?"" to mean that wisdom is timeless.
About Lewis Carroll