Do the difficult things while they are easy and do the great things while they are small. A journey of a thousand miles must begin with a single step.
Lao Tzu

Don't let life discourage you; everyone who got where he is had to begin where he was.
Richard L. Evans

Not until we are lost do we begin to understand ourselves.
Henry David Thoreau

It's only when we truly know and understand that we have a limited time on earth - and that we have no way of knowing when our time is up, we will then begin to live each day to the fullest, as if it was the only one we had.
Elisabeth Kubler-Ross

Begin at once to live, and count each separate day as a separate life.
Seneca

Yet it is in this loneliness that the deepest activities begin. It is here that you discover act without motion, labor that is profound repose, vision in obscurity, and, beyond all desire, a fulfillment whose limits extend to infinity.
Thomas Merton

To fly as fast as thought, you must begin by knowing that you have already arrived.
Richard Bach