The best way to ensure peace is to maintain a balance of power among the great powers.

Discovery is not a straight path; it’s full of twists and surprises.

The things you do in your 20s will shape your future.

In a world of fast change, the values of integrity and quality remain timeless.

The meaning of "knowing" has shifted from being able to remember and repeat information to being able to find and use it.

I want to liberate America from all the things that hold people back.