出自北齐·颜之推《颜氏家训·文章》。书写文章要尊崇“三易”的原则,即文章内容要清晰明了,这是第一项。书写的文字要简单概要,这是第二项。书写的段落要读起来朗朗上口这是第三项。
The transition to cleaner energy is inevitable; those who resist will be left behind.
It is not the strongest of the species that survives, nor the most intelligent, but the one most responsive to change.