The energy and daring is to resist the noes, until the final yes has been achieved.

El universo no fue hecho a medida del hombre; tampoco le es hostil: es indiferente.

Everyone is mentally ill, they just haven’t figured out a name for yours yet.

To create something new, knowledge is essentially required, but not academic degree.

Magic and all that is ascribed to it is a deep presentiment of the powers of science

The good thing about science is that it's true whether or not you believe in it.

The existence of relative truth does not prove the non-existence of universal truth.

Miracles are not contrary to nature but only contrary to what we know about nature.

The great tragedy of Science - the slaying of a beautiful hypothesis by an ugly fact

If we succeed in giving the love of learning, the learning itself is sure to follow.

One possibility is: God is nothing but the power of the universe to organize itself.

You cannot reason people out of a position that they did not reason themselves into.

What medicines do not heal, the lance will; what the lance does not heal, fire will.

Those are some of the things that molecules do, given four billion years of evolution

More often than you might think, teaching science is inseparable from teaching doubt.