I'm not a rapper, I'm a world changer.

Never let success get to your head or failure to your heart.

The business of education is not to make the young perfect in any one of the sciences, but so to open and dispose their minds as may make them capable of any, when they shall apply themselves to it.

The most important thing is to be happy with what you're doing.

Quantum cryptography doesn't rely on the difficulty of mathematical problems, but on the fundamental laws of physics.

The world is a book, and those who do not travel read only one page.