When buying a garden hose, an extension cord, or a ladder, get one substantially longer than you think you need. It’ll be the right size.
在儿童时期没有养成思想的习惯。将使他从此以后一生都没有思想的能力。
The best mathematics is not just logical—it is intuitive and beautiful.
历史是记忆的不完美与文献的不足相遇时产生的确定性。
有了实际工作,宝宝的自我意识就会逐渐发展、强化。