Immaturity is the incapacity to use one's intelligence without the guidance of another.
Immanuel KantPhilosophy is a battle against the bewitchment of our intelligence by means of language.
Ludwig WittgensteinDo not primarily train men to work. Train them to serve willingly and intelligently.
James Cash PenneyTime has a way of demonstrating that the most stubborn are the most intelligent.
Yevgeny Yevtushenko