Love: I recognize the emotion for what it is, an irrational self-destructive impulse, which is disguised as joy.

The practical success of an idea, irrespective of its inherent merit, is dependent on the attitude of the contemporaries. If timely it is quickly adopted; if not, it is apt to fare like a sprout lured out of the ground by warm sunshine, only to be injured and retarded in its growth by the succeeding frost.

It’s not the love you make. It's the love you give.

No free energy device will ever be allowed to reach the market.

The scientific man does not aim at an immediate result. He does not expect that his advanced ideas will be readily taken up. His work is like that of the planter — for the future. His duty is to lay the foundation for those who are to come, and point the way. He lives and labors and hopes.

Ere many generations pass, our machinery will be driven by a power obtainable at any point of the universe.

Throughout the infinite, the forces are in a perfect balance, and hence the energy of a single thought may determine the motion of a universe.