The discovery of DNA structure was like unraveling a very complex puzzle.
Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.
Customer trust is hard to earn and easy to lose; never take it for granted.
出自北齐·颜之推《颜氏家训·教子》引谚语。教育媳妇,要趁她刚嫁到婆家之时;教育孩子,应当赶在孩提时代,教育要掌握最适宜的时间才会有效果。