If you draw a giraffe, you must draw him with a long neck.

If, in your bold creative way, you hold yourself free to draw a giraffe with a short neck, you will really find that you are not free to draw a giraffe.

The moment you step into the world of facts, you step into a world of limits.

You can free things from alien or accidental laws, but not from the laws of their own nature.

You may, if you like, free a tiger from his bars; but do not free him from his stripes.