"Why do we not exhaust the heritage of the ages, spiritual and material for our immediate pleasure, and let posterity go hang? So far as simple rationality is concerned, self-interest can advance no argument against the appetite of present possessors. Yet within some of us, a voice that is not the demand of self-interest or pure rationality says that we have no right to give ourselves enjoyment at the expense of our ancestors' memory and our descendants' prospects. We hold our present advantages only in trust."

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Work outside of school hours was a necessity at an early age, and with such time as I had I turned toward interests of my own devising, making things, experimenting, and planning for the future. I had read of Thomas Alva Edison and other successful inventors, and the idea of making an invention appealed to me as one of the few available means to accomplish a change in one's economic status, while at the same time bringing to focus my interest in technical things and making it possible to make a contribution to society as well.

— Chester Carlson