"You can be barefoot and have worries."

"I regret nothing."

"He's been to the mountaintop, so to speak,"

"Every second is of infinite value"

"Mathematicians are like Frenchmen: whatever you say to them they translate into their own language and forthwith it is something entirely different"

"To know someone here or there with whom you can feel there is understanding in spite of distances or thoughts expressed -- That can make life a garden."

"As our inclinations, so our opinions"

"Who is sure of their own motives can in confidence advance or retreat."

"A clever man commits no minor blunders."

"A judge who cannot punish, in the end associates themselves with the criminal."

"The decline of literature indicates the decline of a nation."

"The decline in literature indicates a decline in the nation. The two keep pace in their downward tendency."

"A person hears only what they understand."

"We can offer up much in the large, but to make sacrifices in little things is what we are seldom equal to."

"Without haste, but without rest."

"The credit of advancing science has always been due to individuals and never to the age."

"Thinking is more interesting than knowing, but less interesting than looking."

"No one as ever completed their apprenticeship."

"In the end we retain from our studies only that which we practically apply."

"On the pinnacle of success man does not stand firm long."

"Stupidity is without anxiety."

"Nothing is to be rated higher than the value of the day."

"To understand one thing well is better than understanding many things by halves."

"Nothing is true, but that which is simple."