There are three principal means of acquiring knowledge. . . observation of nature, reflection, and experimentation. Observation collects facts; reflection combines them; experimentation verifies the result of that combination.

Quote by Denis Diderot

Topics: Knowledge Quotes

Every man has his dignity. I'm willing to forget mine, but at my own discretion...

Every man has his dignity. I'm willing to forget mine, but at my own discretion...

It is very important not to mistake hemlock for parsley, but to believe or not...

It is very important not to mistake hemlock for parsley, but to believe or not...

Disturbances in society are never more fearful than when those who are stirring up the...

Disturbances in society are never more fearful than when those who are stirring up the...

The best doctor is the one you run to and can't find.

The best doctor is the one you run to and can't find.

Only a very bad theologian would confuse the certainty that follows revelation with the truths...

Only a very bad theologian would confuse the certainty that follows revelation with the truths...

The best mannered people make the most absurd lovers.

The best mannered people make the most absurd lovers.

The infant runs toward it with its eyes closed, the adult is stationary, the old...

The infant runs toward it with its eyes closed, the adult is stationary, the old...

Pithy sentences are like sharp nails which force truth upon our memory.

Pithy sentences are like sharp nails which force truth upon our memory.

There is only one passion, the passion for happiness.

There is only one passion, the passion for happiness.

There are things I can't force. I must adjust. There are times when the greatest...

There are things I can't force. I must adjust. There are times when the greatest...

His hands would plait the priest's guts, if he had no rope, to strangle kings.

His hands would plait the priest's guts, if he had no rope, to strangle kings.

If there is one realm in which it is essential to be sublime, it is...

If there is one realm in which it is essential to be sublime, it is...

The general interest of the masses might take the place of the insight of genius...

The general interest of the masses might take the place of the insight of genius...

Power acquired by violence is only a usurpation, and lasts only as long as the...

Power acquired by violence is only a usurpation, and lasts only as long as the...

In order to shake a hypothesis, it is sometimes not necessary to do anything more...

In order to shake a hypothesis, it is sometimes not necessary to do anything more...

When science, art, literature, and philosophy are simply the manifestation of personality they are on...

When science, art, literature, and philosophy are simply the manifestation of personality they are on...

All abstract sciences are nothing but the study of relations between signs.

All abstract sciences are nothing but the study of relations between signs.

Nothing that is worth knowing can be taught.

Nothing that is worth knowing can be taught.

Knowledge is the mother of all virtue; all vice proceeds from ignorance

Knowledge is the mother of all virtue; all vice proceeds from ignorance

There can be no knowledge without emotion. We may be aware of a truth, yet...

There can be no knowledge without emotion. We may be aware of a truth, yet...