“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.”

“The thing done avails, and not what is said about it.”

“Talent may frolic and juggle; genius realizes and adds.”

“Listing your personal milestones is like storing a pocketful of sunshine for a rainy day. Sometimes our best is simply not enough.... We have to do what is required.”