Through regular practice of concentration and meditation you attain clarity of mind, increased grasping power, retentive memory, increased intelligence, confidence, peace, optimism and control of the senses
Swami Sivananda
Republics are created by the virtue, public spirit, and intelligence of the citizens. They fall, when the wise are banished from the public councils, because they dare to be honest, and the profligate are rewarded, because they flatter the people in order to betray them.
Joseph Story
Reason is man's instrument for arriving at the truth, intelligence is man's instrument for manipulating the world more successfully; the former is essentially human, the latter belongs to the animal part of man.
ERICH FROMM
Philosophy is a battle against the bewitchment of our intelligence by means of language
Ludwig Wittgenstein
There are no such things as limits to growth, because there are no limits to the human capacity for intelligence, imagination, and wonder.
Ronald Reagan
Knowing others is intelligence; knowing yourself is true wisdom. Mastering others is strength; mastering yourself is true power. If you realize that you have enough, you are truly rich.
Tao Te Ching
An intelligence test sometimes shows a man how smart he would have been not to have taken it.
Laurence J. Peter
There is nobody so irritating as somebody with less intelligence and more sense than we have.
Don Herold
We regard intelligence as man's main characteristic and we know that there is no superiority which intelligence cannot confer on us, no inferiority for which it cannot compensate
Henri Bergson
If intelligence is the ability to adapt to change, then wisdom is to know how and why to adapt for more than personal or economic gain.
Ivan Urlaub