Live in the present, remember the past, and fear not the future, for it doesn't exist and never shall. There is only now.

Author: Christopher Paolini

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Past thinking and methods did not prevent world wars. Future thinking must prevent wars.

You got to be careful if you don’t know where you’re going, because you might not get there.

Travel is fatal to prejudice, bigotry, and narrow-mindedness.

Twenty years from now you will be more disappointed by the things you didn’t do than by the ones you did do.