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.
悲观主义者在每个机会里看到困难。乐观主义者在每个困难里看到机会。
If you're not making mistakes, you're not trying hard enough.
心理学的目的是理解生活如何运作。