某种无形力量的可怕阴影,虽不可见,却在我们中间漂浮。
The laws of behavior can be derived from basic physiological principles.
成功者与其他人之间的区别不是缺乏力量,也不是缺乏知识,而是缺乏意志。
Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.
Success is a journey, not a destination.