I don't need a reason to be happy. I choose to be.
我不需要理由去快乐,我选择快乐。
学习数学的唯一方法就是做数学。
The progress of science consists in the expansion of the field of experience.
The changes we dread most may contain our salvation.
未来不是我们进入的某物。未来是我们创造的某物。
I'm the reason your dreams won't come true.