Zitate und Sprüche von Richard P. Feynman

The first principle is that you must not fool yourself and you are the easiest person to fool.

Trying to understand the way nature works involves a most terrible test of human reasoning ability. It involves subtle trickery, beautiful tightropes of logic on which one has to walk in order not to make a mistake in predicting what will happen. The quantum mechanical and the relativity ideas are examples of this.