只热爱实践而无理论的人,就像没有舵和罗盘的水手,永远不知道他可能漂流到哪里。
A scientist in his laboratory is not a mere technician: he is also a child confronting natural phenomena that impress him as though they were fairy tales.
我们不是从祖先那里继承了地球,而是从子孙那里借来的。
爱别人的,别人也必然爱他,利于别人的,别人也必然利于他,憎恶别人的,别人也必然憎恶他,残害别人的,别人也必然残害他。
The whole art of teaching is only the art of awakening the natural curiosity of young minds for the purpose of satisfying it afterwards.