Don't wait until everything is just right. It will never be perfect. There will always be challenges, obstacles and less than perfect conditions. So what. Get started now. With each step you take, you will grow stronger and stronger, more and more skilled, more and more self-confident and more and more successful.
现实只是一抹幻影，尽管它从不消散。
数学不是一项观赏性运动。
There was another life that I might have had, but I am having this one.