Sustainability isn't a choice—it's a responsibility we owe to the next generation.

Decide upon your major definite purpose in life and then organize all your activities around it.

释义：谦虚的君子，即使处于卑微的地位，也能以谦虚的态度自我约束，而不因为位卑，就在品德方面放松修养。现常用“卑以自牧”表示以谦卑自守，以谦卑的态度修养自心。