Misfortunes that befell a human being are the eventual cause of his welfare.
Shrimad Devi Bhagavata Purana: 9.7.22
Like a jar of water, when overturned, empties all its contents, never to receive them back, thus should one give away without regard to money, fame, one's progeny, or even our own body to anybody who approaches us with a wish list.
Introduction to Jataka
Never harm a woman, child, hermit or a priest. Even if one has to give up one's life, the trust of these four should never be betrayed.
Panchatantra, Book IV (40)
May the son follow his father and obey his mother. May the wife speak with her husband in a calml and sweet voice.
Atharva Veda 3.30.2
Charity begets wealth, keeping silent makes others follow you, penance leads to gain of desired objects, and celibacy leads to a long life.
Mahabharata Anushasana Parva 7.14
A being is born alone, alone does he die. Alone he wanders in the worldly forest, alone he undergoes great sufferings.
All the gods reside where women are worshipped.
Manu Smriti 3.56
For women the act of marriage is their rite of twice born. To serve her husband is equivalent to staying in a gurukula and household chores are but the service to fires.
One should not sit in a lonely place with ones mother, sister or daughter; for the senses are powerful. They pull towards themselves even a learned man.
Families where women accepted in marriage (wife, daughter in law etc) grieve, those clans are destroyed. But where do not grieve, those families definitely prosper.
In this transient world wealth, our breath, life, and youth, all are transient. If anything is unshaking, it is dharma.
Chanakya Neeti Darpan: 5.20
All that is accumulated is finally to vanish and all that rises ends in fall. All unions end in separation and life in death.
Valmiki Ramayana, 2.105.16
All these are useless: Rainfall in the sea, feeding those with already a full stomach, donating wealth to the already rich, and lighting a lamp in the day.
Chanakya Neeti Darpan: 5.16
There can be no lotus without a stalk, no merchant without deceit, no goldsmith who is not a cheat, no village assembly without conflict and no prostitute without greed.
Mrichchakatika, Act IV.
An elephant bound in ropes, the eclipse of the sun and the poverty of the wise, makes it obvious that the power of fate is always supreme.
Bhartrihari's Nitishatakam 91
Till the Mother, Father and Guru are alive, no need to do any another Dharma. One should constantly serve and benefit them with love and affection.
In humans, the regions above the navel are extremely pure. Even amongst these, the mouth is the purest.
To keep company with those whom they do not like and to be separated from those whom they like as also to deal with the wicked is the agony which people with long life have to suffer.
Mahabharata, Vanaparv, 193.18
A wise man accepts there and then the cooked food, the ripe fruit, a woman in early youth, a wise saying, and a betelnut.
The face is marked over with wrinkles, the head is covered with grey hair and the limbs are all weak and worn out with age, it is only the desire which is youthful (getting strong).