If you think you can do it, you can.
Do not weep do not wax indignant. Understand.
Either you run the day or the day runs you.
If you're going through hell, keep going.
Things do not happen. Things are made to happen.
The dog that trots about finds a bone.
By failing to prepare, you are preparing to fail.
The wise does at once what the fool does at last.
Always desire to learn something useful.
Be gentle to all and stern with yourself.
I think America has more than enough maturity and intelligence to start exercising its world leadership responsibly.