The marvelous richness of human experience would lose something of rewarding joy if there were no limitations to overcome. The hilltop hour would not be half so wonderful if there were no dark valleys to traverse.

I align myself with almost all researchers in assuming that anything we do is a composite of whatever genetic limitations were given to us by our parents and whatever kinds of environmental opportunities are available.

The enemy of art is the absence of limitations.

Logic: The art of thinking and reasoning in strict accordance with the limitations and incapacities of the human misunderstanding.