When natural inclination develops into a passionate desire, one advances towards his goal in seven-league boots.

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

Every effort under compulsion demands a sacrifice of energy. I never paid such a price.

I am equally proud of my Serbian origin and my Croatian fatherland.

So astounding are the facts in this connection, that it would seem as though the Creator, himself had electrically designed this planet.

There is no energy in matter other than that received from the environment

The human being is a self-propelled automaton entirely under the control of external influences. Willful and predetermined though they appear, his actions are governed not from within, but from without. He is like a float tossed about by the waves of a turbulent sea.