真正的幸福來自內心的滿足。
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.
挫折不是懲罰,而是學習的機會。
閱讀是打開世界的鑰匙。