The development of computational complexity theory has shown us that not all problems are created equal.
科学不仅仅是事实的集合;它是一种思维方式,一种以对人类易错性的深刻理解来怀疑地审视宇宙的方式。
每一天都是改变生活的新机会。
You have to believe in yourself when no one else does.