“The most beautiful thing we can experience is the mysterious. It is the source of all true art and science.”

Setting an example is not the main means of influencing another, it is the only means.

Life is like riding a bicycle. To keep your balance you must keep moving.

I have no special talent. I am only passionately curious.

I believe that a simple and unassuming manner of life is best for everyone, best both for the body and the mind.

Anyone who doesn't take truth seriously in small matters cannot be trusted in large ones either.

Once we accept our limits, we go beyond them.

One may say the eternal mystery of the world is its comprehensibility.