The essence of mathematics lies in its freedom.
I have held many things in my hands, and I have lost them all; but whatever I have placed in God's hands, that I still possess.
The simplicity of nature is not to be measured by our conceptions of simplicity.
Overfishing is a theft from future generations.
The only way to do great work is to love what you do.
La soledad es el precio de la lucidez.