我不是一个喜欢回头看的人。我总是向前看。

The truth is, the science of Nature has been already too long made only a work of the brain and the fancy: It is now high time that it should return to the plainness and soundness of observations on material and obvious things.

History is made of moments, both big and small.

I've found time can heal most anything, and you just might find what you're looking for.

忧虑是一种积极的心理活动，可以开阔人的思路。如果能正确引导这一情绪，你就可以洞察任何形势下的负面风险，并采取行动规避这些风险。