农民是土地真正的守护者；他们的角色现在比以往任何时候都更为关键。
唯一的绩效标准是零缺陷。
Literature is the memory of humanity, and without it we are nothing.
学习应使人感到快乐，否则不能称之为真正的学习。
The only limit to our realization of tomorrow is our doubts of today.
心理学必须在理论和实际生活之间架起桥梁。