The biggest guru-mantra is: never share your secrets with anybody. It will destroy you.
Till the enemy's weakness is known , he should be kept on friendly terms.
The low minded are fond of deception the nature of low-minded people never changes.
Considersing the forebearance of a person, Do not harass him.
As a single withered tree, if set aflame, causes a whole forest to burn, so does a rascal son destroy a whole family.
A wicked wife, a false friend, a saucy servant and living in a house with a serpent in it are nothing but death.