The days are [of] two [types]: A 'good' day, so be thankful [to Allaah for it]; and a 'bad' day, so be patient [until Allaah eases your hardship and relieves you of your burden].
Category: Manners
You will regret the time that you have wasted
It is befitting for the student of knowledge to protect and preserve his time, because [sometime] in the future he will [reflect over this and] regret the time he has wasted.
A cause of benefit to others
al-Khaleel* [was of a disposition that] if he [was a cause of] benefit [to] someone with something, [then] he would not see it that he had benefitted him.
Patience whilst upon obedience to Allaah
Patience whilst upon obedience [to Allaah] is [the attainment of] a higher rank than patience whilst enduring trials and tribulations!
From the characteristics of those who are truthful
The truthful person [is one who] restricts his speech, food, sleep, and mixing with others [to only that which is necessary].
The most blessed of days
The wise person knows that the most blessed of days is a day on which he increases in virtue and knowledge.
An elevated level of manners
Indeed this, my brother, has ninety-nine ewes, and I have one ewe; so he said, 'Entrust her to me,' and he overpowered me in speech. Saad 38:23 Shaykh Ibn 'Uthaymeen رحمه الله commented
The people who err the most
Indeed, the people who err the most, are those who engage the most in mentioning the mistakes of others.
Allaah fills their heart with eemaan
[There are] three [categories of people] in whom [should these habits] exist, then Allaah fills their heart with eemaan
I advise the youth to hasten in getting married
The Prophet ﷺ said:
O young men! Whoever among you can afford to get married, let him do so, for it is more effective in lowering the gaze and guarding one's chastity.