It is Zhuge Liang's "Without indifference, one cannot clarify one's aspirations, and without tranquility one cannot reach far."

"Without indifference, one cannot clear one's aspirations, and without tranquility one cannot reach far." "Comes from the "Book of Commandments" written by Zhuge Liang to his 8-year-old son Zhuge Zhan when he was 54 years old. It was written by Zhuge Liang. This couplet reflects Zhuge Liang's philosophical thinking on life. He believes that a person must be indifferent and have few desires before he can have clear goals. Ambition requires loneliness and tranquility to achieve a profound state. The words are simple but profound, and full of Taoist philosophy.

The journey of a gentleman is to cultivate one’s character through tranquility, and to cultivate one’s virtue through frugality

—— Zhuge Liang in "The Book of Commandments"

It is not indifferent to clarify one’s ambitions, it is not tranquility There is no way to go far (this sentence is the most famous)

- Zhuge Liang in "The Book of Commandments"

There is another sentence:

Dedicate yourself to the end and die

——"The Later Disciple" (The author may be Zhuge Liang)

(The full text and translation of Prime Minister Zhuge's "Book of Commandments" are as follows: