天文学的历史是一部视野不断扩展的历史。
The only real elegance is in the mind; if you've got that, the rest really comes from it.
The past is a shadow that follows us, but it is our choice whether to let it define us or to step into the light.
Do you not see how necessary a world of pains and troubles is to school an intelligence and make it a soul?
生活是10%发生在你身上的事,90%是你如何应对它。