There will have to be rigid and iron discipline before we achieve anything great and enduring, and that discipline will not come by mere academic argument and appeal to reason and logic. Discipline is learnt in the school of adversity.
It was a high speech of Seneca that "The good things which belong to prosperity are to be wished, but the good things that belong to adversity are to be admired."
He that can heroically endure adversity will bear prosperity with equal greatest of the soul; for the mind that cannot be dejected by the former is not likely to be transported without the latter.
The test of friendship is assistance in adversity, and that too, unconditional assistance, Co-operation which needs consideration is as a commercial contract and not friendship. Conditional co-operation is like adulterated cement which does not bind.