“A man's friendships are one of the best measures of his worth.”
More from Charles Darwin
“It is not the strongest of the species that survives, nor the most intelligent, but the…”
“If I had my life to live over again, I would have made a rule to read some poetry and…”
“My mind seems to have become some kind of machine for grinding general laws out of large…”
“The highest possible stage in moral culture is when we ought to control our thoughts.”