Treat every problem with reason.

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.

历史不仅仅是关于过去；它是关于理解现在和塑造未来。

伟大的领导者倾听多于发言。