Some of our weaknesses are born in us, others are the result of education; it is a question which of the two gives us most trouble.
Instruction does much, but encouragement everything.
Be above it! Make the world serve your purpose, but do not serve it.
Culture which smooth the whole world licks, Also unto the devil sticks.
With knowledge comes more doubt.
Normally, the sciences distance themselves from life and the return to it via a detour.