The aim of education is to strengthen and multiply the powers and activities of the mind rather than to increase its possessions.
If we learn from those only, of whose lives and opinions we altogether approve, we shall have to turn from many of the highest and profoundest minds.
The doubt of an earnest, thoughtful, patient and laborious mind is worthy of respect. In such doubt may be found indeed more faith than in half the creeds.
The study of science, dissociated from that of philosophy and literature, narrows the mind and weakens the power to love and follow the noblest ideals: for the truths which science ignores and must ignore are precisely those which have the deepest bearing on life and conduct.
The world is chiefly a mental fact. From mind it receives the forms of time and space, the principle of casuality[sic], color, warmth, and beauty. Were there no mind, there would be no world.
Exercise of body and exercise of mind are supplementary, and both may be made recreative and educative.
Agitators and declaimers may heat the blood, but they do not illumine the mind.
One may speak Latin and have but the mind of a peasant.
It is the expensiveness of our pleasures that makes the world poor and keeps us poor in ourselves. If we could but learn to find enjoyment in the things of the mind, the economic problems would solve themselves.
Dislike of another's opinions and beliefs neither justifies our own nor makes us more certain of them: and to transfer the repugnance to the person himself is a mark of a vulgar mind.