F. Scott Fitzgerald
The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function. One should ... be able to see that things are hopeless and yet be determined to make them otherwise.
B. H. RobertsMental Laziness is the vice of men, especially with reference to divine things. Men seem to think that because inspiration and revelation are factors in connection with the things of God, therefore the pain and stress of mental effort are not required; that by some means these elements act somewhat as Elijah’s ravens and feed us without effort on our part.
Nikos KazantzakisBy believing passionately in something that still does not exist, we create it. The nonexistent is whatever we have not sufficiently desired.
Wernher von BraunThe human brain is the only supercomputer we can make with unskilled labor.