This sentence uses two concrete events: "sailing against the current" and "walking on the plain" to compare "learning" and "mind", which make the difficulty of learning and the easy indulgence of the mind abstract and concrete, and the metaphor is appropriate and philosophical.
Brief introduction of augmented contributions
Zengguang Xianwen, also known as Xianwen in Past Dynasties and Xianwen in Past Dynasties, is a children's enlightenment bibliography compiled in Ming Dynasty. "Glory and Contribution" is a collection of proverbs and aphorisms of China from ancient times to the present. Later, it was changed to this appearance after the continuous supplement of the literati in the Ming and Qing Dynasties. It was called "adding glory to the text" in history, commonly known as "adding glory to the text". The contents of augmented sages are roughly as follows: 1. Talking about people and interpersonal relationships; Second, talk about fate; Third, talk about how to live in the world; Fourth, express your views on reading.
Famous sayings about learning
1, sensitive and eager to learn, not ashamed to ask questions. -Confucius
It's never too late to study. Gorky
3. I'm not afraid to read less, but I'm afraid I can't remember well. -Xu Teli
4. Wisdom comes from diligence, and greatness comes from the ordinary. -Folk proverbs
5, learning without thinking is useless, thinking without learning is dangerous. -Confucius