Few people are capable of expressing with equanimity opinions which differ from the prejudices of their social environment. Most people are even incapable of forming such opinions.
The faster you go, the shorter you are.
The high destiny of the individual is to serve rather than to rule.
Failing isn't bad when you learn what not to do.
I live in that solitude which is painful in youth, but delicious in the years of maturity.
For a scientist, altering your doctrines when the facts change is not a sign of weakness.