You have to take the opportunities when they come along.
我是一名作家，因为我需要讲故事。这是一种理解生活的方式。
Man is not logical and his intellectual history is a record of mental reserves and compromises. He hangs on to what he can in his old beliefs even when he is compelled to surrender their logical basis.
"The more you try to understand the mirror, the less you know."
The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons will again produce fission.