That’s one small step for a man, a giant leap for mankind.

The most dangerous thing is not failure, but complacency.

If you don't believe in yourself, no one else will.

The boundaries which divide Life from Death are at best shadowy and vague. Who shall say where the one ends, and where the other begins?

历史上的大规模战争——我们已经瞥见了这一真相——直接或间接地源于国家间的不平衡发展。