What is meant by "making the thoughts sincere" is the allowing no self-deception, as when we hate a bad smell, and as when we love what is beautiful. This is called self-enjoyment. Therefore, the superior man must be watchful over himself when he is alone. …
所謂誠其意者，毋自欺也，如惡惡臭，如好好色，此之謂自謙，故君子必慎其獨也！
Keep thy tongue from evil, And thy lips from speaking guile.
Truth is higher than everything; but higher still is truthful living.
O ye who believe! Fear Allah, and (always) say a word directed to the Right:
Be not hasty in thy spirit to be angry: for anger resteth in the bosom of fools.
Not to commit any sin, to do good, and to purify one's mind, that is the teaching of (all) the Awakened.
By simplicity he will become upright in actions, thoughts, and speech, and he will become veracious; thereby he will truly practise the Law.
Eat in proportion to thy hunger; how can he give praises who scarce can breathe by reason of his gluttony? He whose stomach is full is void of wisdom. The prey is entrapped in the snare because of its greed. …
The true prevails, not the untrue; by the true the path is laid out, the way of the gods (devayânah), on which the old sages, satisfied in their desires, proceed to where there is that highest place of the True One.