两个物体的相互作用力总是大小相等,方向相反,同时出现或消失且作用于同一直线上。
Trust is the expectation that arises within a community of regular, honest, and cooperative behavior, based on commonly shared norms, on the part of other members of that community.
伟大的领导者不创造追随者,而是创造更多领导者。
Leadership means making tough decisions today that will benefit everyone tomorrow.