Men do less than they ought, unless they do all that they can.

By far the most difficult skill I learned as CEO was the ability to manage my own psychology.

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Great things are not done by impulse, but by a series of small things brought together.

We're going to be OK because of the American people. They have more grit, determination and courage than you can imagine.

The truth is that all men having power ought to be mistrusted.