Quote

Doubt grows with knowledge.

Wonder rather than doubt is the root of all knowledge.

Knowledge is knowing that we cannot know.

Doubt is not below knowledge, but above it.

To believe with certainty we must begin with doubting.

Although our intellect always longs for clarity and certainty, our nature often finds uncertainty fascinating.

Knowledge is sometimes superfluous: when we need it, we have it not.

Knowledge is invariably a matter of degree: you cannot put your finger upon even the simplest datum and say this we know.

Doubt is the middle position between knowledge and ignorance. It encompasses cynicism but also genuine questioning.

Truth emerges more readily from error than from confusion.