Never bend your head. Always hold it high. Look the world right in the eye.

When you are enthusiastic about what you do, you feel this positive energy. It's very simple.

Starting over can be challenging, but also it can be a great opportunity to do things differently.

Smile, breathe, and go slowly

The true sign of intelligence is not knowledge but imagination.

Science is a wonderful thing if one does not have to earn one's living at it.

I learn to love the thing that has to be erased.