Uncertainty and expectation are the joys of life. Security is an insipid thing, through the overtaking and possessing of a read more

Uncertainty and expectation are the joys of life. Security is an insipid thing, through the overtaking and possessing of a wish discovers the folly of the chase.

To be absolutely certain about something, one must know everything or nothing about it.

To be absolutely certain about something, one must know everything or nothing about it.

The quest for certainty blocks the search for meaning. Uncertainty is the very condition to impel man to unfold his read more

The quest for certainty blocks the search for meaning. Uncertainty is the very condition to impel man to unfold his powers.

For my part I know nothing with any certainty, but the sight of the stars makes me dream.

For my part I know nothing with any certainty, but the sight of the stars makes me dream.

In these matters the only certainty is that there is nothing certain.

In these matters the only certainty is that there is nothing certain.

Knowledge is an unending adventure at the edge of uncertainty.

Knowledge is an unending adventure at the edge of uncertainty.

When one admits that nothing is certain one must, I think, also add that some things are more nearly certain read more

When one admits that nothing is certain one must, I think, also add that some things are more nearly certain than others

If we insist on being as sure as is conceivable... we must be content to creep along the ground, and read more

If we insist on being as sure as is conceivable... we must be content to creep along the ground, and can never soar.

To be positive: to be mistaken at the top of one's voice.

To be positive: to be mistaken at the top of one's voice.