Promises are not to be kept, if the keeping of them is to prove harmful to those to whom you have made them.

Do not hold the delusion that your advancement is accomplished by crushing others.

There is no life without friendship

In a disordered mind, as in a disordered body, soundness of health is impossible.

The name of peace is sweet, and the thing itself is beneficial, but there is a great difference between peace and servitude. Peace is freedom in tranquillity, servitude is the worst of all evils, to be resisted not only by war, but even by death.

The long time to come when I shall not exist has more effect on me than this short present time, which nevertheless seems endless.

If only every man would make proper use of his strength and do his utmost, he need never regret his limited ability.