Constancy of purpose is the first principle of success.
The turning point in the life of those who succeed usually comes at the moment of some crisis.
A negative attitude toward others can never bring me success.
Nature cannot be tricked or cheated. She will give up to you the object of your struggles only after you have paid her price.
If you cannot do great things, do small things in a great way.
Within every adversity is an equal and opposite benefit.