Innovation in science often comes from looking at old problems in new ways.
You don't build a business. You build people, and then people build the business.
互相有爱意,交往中也相互得利。这是墨子很典型的思想主张,也是墨家学派对人类社会最美好的期望。
The thing about happiness is that you only know you had it when it's gone.