I believe that for permanent survival, man must balance science with other qualities of life, qualities of body and spirit as well as those of mind - qualities he cannot develop when he lets mechanics and luxury insulate him too greatly from the earth to which he was born.

It is always easier to deal in truth and honesty and follow these to their legitimate ends, than it is to construct and adjust a false superstructure upon a false base.

If we can combine our knowledge of science with the wisdom of wildness, if we can nurture civilization through roots in the primitive, man's potentialities appear to be unbounded.

As civilization advances, man grows unconscious of the primitive elements of life; he is separated from them by his perfection of material techniques.

Aviation seems almost a gift from heaven to those Western nations who were already the leaders of their era, strengthening their leadership, their confidence, their dominance over other peoples.

Is he alone who has courage on his right hand and faith on his left hand?

Science, freedom, beauty, adventure: what more could you ask of life?