学习本质上是刺激-反应连接的问题。
Learning is essentially a matter of stimulus-response connections.
Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.
更快、更高、更强。
写作的行为是一种反抗的行为。
实现明天的唯一限制是我们今天的疑虑。