“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.”

“I were better to be eaten to death with a rust than to be scoured to nothing with perpetual motion.”

“No hour of life is wasted that is spent in the saddle.”

“A mind always employed is always happy. This is the true secret, the grand recipe, for felicity.”