“What is not started today is never finished tomorrow.”

“Whether one show one's self a man of genius in science or compose a song, the only point is, whether the thought, the discovery, the deed, is living and can live on.”

“A person hears only what they understand.”

“Duty is the demand of the hour.”

“He who cannot draw on three thousand years is living from hand to mouth.”

“My endeavorsHave ever come too short of my desires.Yet filed with my abilities.”

“There is nothing so confining as the prisons of our own perceptions.”

“No power of genius has ever yet had the smallest success in explaining existence. The perfect enigma remains.”