If you have built castles in the air, your work need not be lost; that is where they should be. Now put the foundations under them.Henry David Thoreau
In the long run, men hit only what they aim at. Therefore, they had better aim at something high.Henry David Thoreau
The youth gets together his materials to build a bridge to the moon, or, perchance, a palace or temple on the earth, and, at length, the middle-aged man concludes to build a woodshed with them.Henry David Thoreau
I long to accomplish a great and noble task, but it is my chief duty to accomplish small tasks as if they were great and noble.Helen Keller
Companies that get confused, that think their goal is revenue or stock price or something. You have to focus on the things that lead to those.Tim Cook