Ambition

If you want something, go out and get it — for one thing is sure as all hell, nobody is going to bring it to you.
– Wilbur Smith. A Sparrow Falls

Beware that you do not lose the substance by grasping at the shadow.
– Aesop. The Dog and the Shadow

Those who dream by night in the dusty recesses of their minds wake in the day to find that it was vanity: but the dreamers of the day are dangerous men, for they may act their dream with open eyes, to make it possible.
– TE Lawrence. Seven Pillars of Wisdom