The power of accurate observation is frequently called cynicism by those who don’t have it. (George Bernard Shaw)

The artist is nothing without the gift, but the gift is nothing without work. (Emile Zola)

It is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring. (Carl Sagan)

A mathematician is a device for turning coffee into theorems. (Paul Erdos)