كمية الضوضاءِ التي يملكها أي واحد بطريقة غير ملموسة؛ تتناسب عكسياً مع قدرتِه العقليةِ. - Arthur Schopenhauer

If there is anything in the world that can really be called a man’s property, it is surely that which is the result of his mental activity.

For it is a matter of daily observation that people take the greatest pleasure in that which satisfies their vanity; and vanity cannot be satisfied without comparison with others.

The charlatan takes very different shapes according to circumstances; but at bottom he is a man who cares nothing about knowledge for its own sake, and only strives to gain the semblance of it that he may use it for his own personal ends, which are always selfish and material.