“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.”

“Is this the generation of love? Hot blood, hot thoughts and hot deeds? Why, they are vipers. Is love a generation of vipers?”

“You must not thinkThat we are made of stuff so fat and dullThat we can let our beard be shook with dangerAnd think it pastime.”

“He thinks too much. Such men are dangerous.”