Never hurt cows.
Rig Veda 8.101.15
Separation from wife, censure by the good, the remainder of debt, service to the miser, the advent of the dear ones when one is stricken with poverty these five burn the body without fire.
He who kills a Brahmin or a cow or drinks an intoxicating liquor or is a thief or violates his vow is till able to expiate his sin, but of whom who is guilty of ingratitude no expiation is possible.
Valmiki Ramayana, 4.3412
Whatever is given to an undeserving person ignoring the deserving one, would be like giving something to an ass ignoring a cow.
Skandaapuran (Maa. Kou. 5.11)
O sandalwood, who could be clever enough to follow this path of yours that you, even when rubbed, fill with your fragrance even those who rub you?
Bestowal on the poor alone is charity: everything else smacks of barter.
Tirukurral, Illa., Ch. 23
If a pot contains ghee, ants will gather on its exterior unceasingly although they are unable to get at it within.
Tirukurral Aras. Ch.47, 337
Indulgence leads to demerits and admonition leads to development of good qualities. Hence, sons and students should be admonished and never indulged.
Chanakya Neeti Darpan: 212
Always give way to a brahmin, a cow, the king, a blind person, one who is old, one who is carrying a load, a pregnant woman and one who is weak.
Baudhayana Dharma Sutra 2.3.30
To be in the river till noon, to offer worship to a deity in an (open) assembly, to be well-dressed all the time - this is what hypocrisy is.
A wise man accepts there and then the cooked food, the ripe fruit, a woman in early youth, a wise saying, and a betelnut.
That which was before is only what takes birth again. What happens before happens now and that is what will happen in the future too. It is the father who enters his son with all his powers.
Atharva Veda 11.4.20
One should win over kama (desire) by giving up all resolves, anger by giving up desire, greed by looking upon wealth as an evil, and fear by pondering on the true nature of reality (Tattva).
Shrimad Bhagavata Purana. 7.15.22
The parents who do not educate their child are his enemies.
Chanakya Neeti Darpan: 2.11
Generally the mind of the ignorant inflamed with anger with reference to an object gets all the more inflamed with its mention.
The mother is a thousand times great than the father.
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
Worship the following as gods: your mother, father, teacher and the guest who comes unannounced to your home.
Taittriya Upanishad 1.11.2
Penance is done alone, studies with two, singing with three, traveling with four, farming with five, and a battle is fought well by many.
Chanakya Neeti Darpan: 4.12
The best remedy for sorrow (dukha) is to not think about it. Thinking about sorrow increases it, rather than decreasing it.
Mahabharata Stri Parva 2.27