If you start out by promising what you don't even have yet, you'll lose your desire to work toward getting it.
世界是一个舞台，但演员选得很糟糕。
Success is not final, failure is not fatal: it is the courage to continue that counts.
"The universe is asymmetric and I am persuaded that life, as it is known to us, is a direct result of the asymmetry of the universe or of its indirect consequences."