A red rose is not selfish because it wants to be a red rose. It would be horribly selfish if it wanted all the flowers in the garden to be both red and roses.
The pursuit of knowledge is the most noble of human endeavors.
When you want to help people, you tell them the truth. When you want to help yourself, you tell them what they want to hear.
无人机的价值不在于飞行,而在于落地。
在文学中,就像在生活中,一切都是相连的。