Certain Quote by John F. Kennedy

Life on earth, filled with uncertainty and change, seemed far more difficult than what lay beyond the grave.

— Jane Hamilton

“Uncertainty is a certainty in life. Unknown is well-known in life. Uncertainty and unknown gives space for the impossible to become possible. Real change…

— Kitty Downer

Madness is the result not of uncertainty but certainty.

— Friedrich Nietzsche

In terms of the game theory, we might say the universe is so constituted as to maximize play. The best games are not those…

— George Leonard

Uncertainty is the only certainty there is, and knowing how to live with insecurity is the only security

— John Allen Paulos

[Friedrich] Nietzsche said something marvellous, he said "Madness is not a consequence of uncertainty but of certainty", and this is fanaticism.

— Elie Wiesel

He who does not understand the supreme certainty of mathematics is wallowing in confusion.

— Leonardo da Vinci

Uncertainty is wondrous, and.. certainty, were it to be real, would be moral death.

— Immanuel Wallerstein

In practice, some come to see easily, some with difficulty. But whatever the case, never mind. Difficult or easy, the Buddha said not to…

— Ajahn Chah

Neither the true nor the false roots are always real; sometimes they are imaginary; that is, while we can always imagine as many roots…

— Rene Descartes

Calculus works by making visible the infinitesimally small.

— Keith Devlin

The enormous usefulness of mathematics in the natural sciences is something bordering on the mysterious and there is no rational explanation of it.

— Eugene Wigner