Although modesty is natural to man, it is not natural to children. Modesty only begins with the knowledge of evil.
Science gives us knowledge, but only philosophy can give us wisdom.
A knowledge of the forces that rule society, of the causes that have produced its upheavals, and of society’s resources for promoting healthy progress has become of vital concern to our civilization.
Solitude can be used well by very few people. They who do must have a knowledge of the world to see the foolishness of it, and enough virtue to despise all the vanity.
Knowledge is proud that it knows so much; wisdom is humble that it knows no more.
I am conscious of my inability to grasp, in all its details and positive developments, any very large portion of human knowledge.
Knowledge which is acquired under compulsion obtains no hold on the mind.
Any knowledge that doesn’t lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.
If men possessed wisdom, which stands in the same relation to the form of man as the sight to the eye, they would not cause any injury to themselves or to others; for the knowledge of truth removes hatred and quarrels, and prevents mutual injuries.
Knowledge of human nature is the beginning and end of political education.