歧视更可能由那些能够承担其代价的人实施。
要理解心理学,就要在自然环境中观察行为。
可持续性不是一种选择;而是我们对后代的责任。
To feel much for others and little for ourselves; to restrain our selfishness and exercise our benevolent affections, constitute the perfection of human nature.
Every ton of low-carbon cement we produce is a step toward a healthier planet.