Teachings from Go-Grahana Parva in Mahabharata

Something that is thought of in one way, may turn out to be another.

Those who are learned in the ancient accounts have said that a war is the worst.

Valour at the right place and right time is recommended for our welfare.

The learned do not gauge how much of load a chariot can take on the words of its maker.

A war guarantees victory only if it is at the right time and the right place. But if it is conducted at the wrong time, it does not bring any fruits.
Mahabharata