The present state of the system of nature is evidently a consequence of what it was in the preceding moment, and if we conceive of an intelligence which at a given instant comprehends all the relations of the entities of this universe, it could state the respective positions, motions, and general effects of all these entities at any time in the past or future.
Don't fear failure; fear the absence of trying.
Reflect upon your present blessings, of which every man has plenty; not on your past misfortunes, of which all men have some.
The only thing that can make you a winner is your attitude.