You can't control commodity prices, but you can control how you respond to them.

The only limit to our realization of tomorrow will be our doubts of today.

Don't wait for the perfect moment. Take the moment and make it perfect.

I hold every man a debtor to his profession； from the which as men of course do seek to receive countenance and profit， so ought they of duty to endeavor themselves by way of amends to be a help and ornament thereunto.

最好的性能改进是从非工作状态过渡到工作状态。