Ifs Quote by Samuel Johnson

Forgetfulness is necessary to remembrance. Ideas are retained by renovation of that impression which time is always wearing away,and which new images are striving…

— Samuel Johnson

Sometimes a point comes in our life, where all the knowledge we have possessed, becomes useless.

— Akash Rajoriya

The thoughts that come often unsought, and, as it were, drop into the mind, are commonly the most valuable of any we have

— John Locke

All intelligent thoughts have already been thought; what is necessary is only to try to think them again.

— Johann Wolfgang von Goethe

We must not attach knowledge to the mind; we have to incorporate it there.

— Michel de Montaigne

We cannot empty the mind by thinking. Only by observation.

— Robert Adams

The purification of the mind is very necessary. (72)

— Anonymous

“Thoughts without content are empty, intuitions without concepts are blind. The understanding can intuit nothing, the senses can think nothing. Only through their unison…

— Immanuel Kant

The mind ought sometimes to be diverted that it may return to better thinking.

— Phaedrus

Knowledge is not gained, it is there all the time. It is the "veils" which have to be dissolved in the mind.

— Idries Shah

Knowledge without understanding is useless.

— Thucydides

Knowledge for its own sake was meaningless, its mere accumulation a waste of time. Knowledge must lead to understanding.

— Moses Finley