科学的进步依赖于新技术、新发现和新思想，可能按这个顺序。

I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit.

有人居住的世界的边界是由人类知识的极限决定的。

生命太短暂，不要把时间浪费在不尊重你的人身上。