The discovery of 51 Pegasi b was a turning point in astronomy, proving that planets could exist around sun-like stars.

词语之间的沉默有时比词语本身更能说明问题。

唯一能拯救世界的是人类的觉醒。

We still have a long way to go. But we are moving in the right direction.

出自先秦《荀子·荣辱》。赠人以善良之言，好比冬天的衣服一样让人感到温暖；说伤害别人的话，比用矛戟刺人还要厉害，为人说话不可太刻薄。

教学不是传递知识，而是为知识的产生或构建创造可能性。