我认为人们相信天堂是因为他们不喜欢死亡的想法,因为他们想继续活着,他们不喜欢别人会搬进他们的房子并把他们的东西扔进垃圾堆的想法。
The beauty of mathematics only shows itself to more patient followers.
On the path of science, there are no smooth roads to take; only those who are not afraid of hard work and climb the steep mountain paths have the hope of reaching the glorious summit.