There are two ways to write error-free programs; only the third one works. 

- Alan Perlis

If I have been able to see further, it was only because I stood on the shoulders of giants. 

- Isaac Newton

What we know is a drop, what we don't know is an ocean. 

- Isaac Newton

Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught. 

- Oscar Wilde