Genius develops in quiet places, character out in the full current of human life.

The first and last thing required of genius is the love of truth. [Ger., Das erste und letzte, was vom Genie gefordert wird, ist Wahreits-Liebe.]

Mediocrity has no greater consolation than in the thought that genius is not immortal

Boldness has genius, power, and magic in it.

First and last, what is demanded of genius is love of truth.

Common sense is the genius of humanity.