The light constantly changes, and that alters the atmosphere and beauty of things every minute.

The most valuable crop we can grow is trust between farmers and consumers.

A person may cause evil to others not only by his actions but by his inaction， and in either case， he is justly accountable to them for the injury.

解释：空有虚名而无实际行动的人，必然会招来人们的怨恨。