The whole problem with the world is that fools and fanatics are always so certain of themselves, but wiser people so full of doubts.

Cannibals prefer those who have no spines.

Positive thinking will let you do everything better than negative thinking will.

If everything seems under control, you’re just not going fast enough.

Success is doing what you want, where you want, when you want, with whom you want as much as you want.

The diamond cannot be polished without friction, nor the man perfected without trials.

In the modern world of business, it is useless to be a creative, original thinker unless you can also sell what you create.

It takes humility to realize that we don’t know everything, not to rest on our laurels and know that we must keep learning and observing. If we don’t, we can be sure some startup will be there to take our place.

The diamond cannot be polished without friction, nor the man perfected without trials.

The only people who never fail are those who never try.

A poorly implemented feature hurts more than not having it at all.

If you can do something to get somebody excited — not everybody — but if you can be the best for somebody, then you can win.

It takes humility to realize that we don’t know everything, not to rest on our laurels and know that we must keep learning and observing. If we don’t, we can be sure some startup will be there to take our place.

You were born to win, but to be a winner, you must plan to win, prepare to win, and expect to win.