To every action there is always opposed an equal reaction； or， the mutual actions of two bodies upon each other are always equal， and directed to contrary parts.

Time is the only critic without ambition.

"Success is a lousy teacher. It seduces smart people into thinking they can't lose."

我不需要任何人的认可。

The most valuable resource we have isn't in the ground - it's the people who show up every day to do the work.