The man of knowledge must be able not only to love his enemies but also to hate his friends.

Our treasure lies in the beehive of our knowledge. We are perpetually on the way thither, being by nature winged insects and honey gatherers of the mind.

He who would learn to fly one day must first learn to stand and walk and run and climb and dance one cannot fly into flying.

He who has a why to live can bear almost any how.

We love life, not because we are used to living but because we are used to loving.