What is your favorite Motivational Quote

Today I will try something different. Instead of myself rambling on. I want to open up the floor to see if I can build my stock of quotes, from ones that you all like. 

So I pose the question. What is your favorite motivational quote?

Let's start a discussion about them.

The cost of knowledge

Knowledge is priceless you need to continue to learn and strive for things other wise you will become insignificant. We must learn constantly and learn as much as we can about all different subjects. Not only will this make you well rounded, but you will become much more interesting to be around. So learn constantly and share your knowledge. I like to follow the Learn, Earn, Return policy. Spend your time learning all that you can (this is continuous) then earn money for what you know through your job, and then enlighten others to what you know.  Life is too short to not give back and have a duty to fellow mankind.



But wait education is expensive isn't it?

Well to answer that, I like to use this anonymous quote I once heard.

"If you think education is expensive, you should try ignorance."