The greatest friend of Truth is time, her greatest enemy is Prejudice, and her constant companion Humility.

Truth is the secret of eloquence and of virtue, the basis of moral authority; it is the highest summit of art and life.

Never trust a man who speaks well of everybody.

To do anything in this world worth doing, we must not stand back shivering and thinking of the cold and danger, but jump in, and scramble through as well as we can.

Remember that lost time does not return.

The true teacher defends his pupils against his own personal influence.

Just definitions either prevent or put an end to a dispute.

What is defeat? Nothing but education; nothing but the first step to something better.

No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be true.

How unhappy is he who cannot forgive himself.