Arthashastra and Neetishastra.

1) A person should not be too honest. Just as straight trees are chopped-down first, honest people are taken advantage of first.
2) An egoist can be won over by being respected, a crazy person can be won over by allowing him to behave in an insane manner and a wise person can be won over by truth.
3) Before you start some work, always ask yourself three questions - Why am I doing it? What the results might be? And Will I be successful?
4) Even if a snake is not poisonous, it should pretend to be venomous.
5) If you get to learn something even from the worst of creatures, don’t hesitate.
6) The four greatest enemies of a man are - the father who has taken a loan, the characterless mother, the beautiful but promiscuous wife and the stupid child.
7) The world’s biggest power is the youth and beauty of a woman.
8) There is some self-interest behind every friendship. There is no friendship without self-interests. This is a bitter truth.
9) A woman is four times as shy, six times as brave and eight times as lusty as a man.
10) Prostitutes don’t live in company of poor men, birds don’t build nests on a tree that doesn’t bear fruits and citizens never support a weak administration.