There is no more merit in being able to attach a correct description to a picture than in being able to find out what is wrong with a stalled motorcar. In each case it is special knowledge.

In expanding the field of knowledge we but increase the horizon of ignorance.

Sin, guilt, neurosis-they are one and the same, the fruit of the tree of knowledge.

The first and wisest of them all professed To know this only, that he nothing knew.

Without knowledge, life is no more than the shadow of death.

Such is the constitution of the human mind, that any kind of knowledge, if it be really such, is its own reward.

Wisdom sets bounds even to knowledge.

Since we cannot be universal and know all that is to be known of everything, we ought to know a little about everything.

Most people affirm pleasure to be the good, but the finer sort of wits say it is knowledge.

All knowledge that is divorced from justice must be called cunning.