"Wisdom alone is true ambition's aim, wisdom is the source of virtue and of fame obtained with labour, for mankind employed, and then, when most you share it, best enjoyed."

"Not ignorance, but ignorance of ignorance, is the death of knowledge."

"It is the business of the future to be dangerous and it is among the merits of science that it equips the future for its duties."

"The task of a university is the creation of the future, so far as rational thought and civilized modes of appreciation can affect the issue."

"My Vegas act is how I make my money."

"It is a timeless truth that courage is not the absence of trembling, but the decision to step forward regardless — an essential principle for the reflective life."

"The time for action is now. It's never too late to do something."

"It is a quiet truth that do not wait for favorable winds; take the oars and row toward your horizon."