The difference between ordinary and extraordinary is that little extra.
问题的数学表述通常比其解决方案更重要,后者可能仅仅是数学或实验技巧的问题。
When hitchhiking, look like the person you want to pick you up.
I guess it comes down to a simple choice:get busy living or get busy dying.
Reason obeys itself; and ignorance submits to whatever is dictated to it.