I refuse to be burdened by vague worries. If something wants to worry me, it will have to make itself clear.

Sometimes in tragedy we find our life's purpose - the eye sheds a tear to find its focus.

There is nothing more essential to getting a project off the ground than the underestimate.

There are many experts on how things have been done up to now. If you think something could use a little improvement, you are the expert.

The trouble with having a stubbornness contest with your kids is that they have your stubbornness gene.

If you understand compound interest, you basically understand the universe.

It helps if you don't see it as traffic but rather as thousands of individuals resolved to press on another day.