There are no objects whose existence is indubitable.

Remember, if you ever need a helping hand, it's at the end of your arm, as you get older, remember you have another hand: The first is to help yourself, the second is to help others.

Those who can imagine anything,can create the impossible.

数学的真正力量在于它能够揭示宇宙混沌中隐藏的模式和结构。