孤独并不是来自身边无人。感到孤独的真正原因是因为一个人无法与他人交流对其最要紧的感受。
This is the map that shows us where we're going. And this is the map that shows us where we've been. And it's never ever ugly.
Mathematics is the poetry of logical ideas.
有些人不喜欢改变,但如果替代方案是灾难,你就需要拥抱变化。
人类本质上是自我决定的;他成为他意愿自己成为的样子。