过去总是紧张的，未来是完美的。
"The past is always tense, the future perfect."
解析：吃粗粮，喝清水，弯起胳膊当枕头，这其中也有着乐趣。
The hardest part of any challenge is taking the first step.
数学的力量在于它的普遍性和超越文化界限的能力。
估计问题的性质不同。在这里，我们不关心检验特定的假设，而是关心估计参数的值。
生存不仅仅是活着；它是关于坚守你的人性。
The pursuit of knowledge in computer science is a journey through an infinite landscape of ideas.
It is perfectly certain that the soul is immortal and imperishable, and our souls will actually exist in another world.
