More quotes by Richard Feynman

"Physics is like sex: sure, it may give some practical results, but that's not why we do it."
"Physics isn't the most important thing. Love is."
"You can know the name of a bird in all the languages of the world, but when you're finished, you'll know absolutely nothing whatever about the bird... So let's look at the bird and see what it's doing -- that's what counts."
"I learned very early the difference between knowing the name of something and knowing something."
"The first principle is that you must not fool yourself and you are the easiest person to fool."