Conscious man, to be sure, has at all times been keenly aware that life is an adventure, that life must, forever, be wrested from death.

I know what it's like to see one's mother go through the agony of death and be unable to help; there is no consolation. We all have to bear such heavy burdens, for they are unalterably linked to life.

Man usually avoids attributing cleverness to somebody else unless it is an enemy.

Everything that can be counted does not necessarily count; everything that counts cannot necessarily be counted.

Don't listen to the person who has the answers; listen to the person who has the questions.

The most valuable thing a teacher can impart to children is not knowledge and understanding per se but a longing for knowledge and understanding, and an appreciation for intellectual values, whether they be artistic, scientific, or moral. It is the supreme art of the teacher to awaken joy in creative expression and knowledge. Most teachers waste their time by asking questions that are intended to discover what a pupil does not know, whereas the true art of questioning is to discover what the pupil does know or is capable of knowing.

There is possibility in every difficulty.