We are all born with a certain package. We are who we are: where we were born, who we were born as, how we were raised. We're kind of stuck inside that person, and the purpose of civilization and growth is to be able to reach out and empathize a little bit with other people.
能源的未来在于可持续性和创新。
引力的存在是最明显的实验事实,但从理论角度来看,它是最神秘的力量。