We can redeem anyone who strives unceasingly.
One mind is enough for a thousand hands.
A mathematician is only perfect insofar as he is a perfect man, sensitive to the beauty of truth.
Reasonable men are the best dictionaries of conversation.
Generosity wins favour for everyone, especially when it is accompanied by modesty.
Whoever makes it a rule to test action by thought, thought by action, cannot falter, and if he does, will soon find his way back to the right road.