“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.”

“There is one mind common to all individual men. Every man is an inlet to the same and to all of the same.”

“It sometimes occurs that memory has a personality of its own and volunteers or refuses its information at its will, not at mine.”

“Thought dissolves the material universe by carrying the mind up into a sphere where all is plastic.”