The source of every Crime, is some defect of the Understanding; or some error in Reasoning, or some sudden force of the Passions. Defect in the Understanding, is Ignorance; in Reasoning, Erroneous Opinion.

Ignorance, the root and stem of every evil.

Ignorance, the root and stem of all evil.

Ignorance of Scripture is the root of every error in religion, and the source of every heresy.

At the root of all the harm we cause is ignorance.

All sins have their origin in a sense of inferiority, otherwise called ambition.

I believe that ignorance is the root of all evil.
And that no one knows the truth.

Morally, it is wrong to suppose the source of evil is outside oneself, that one is a vessel of holiness running over with virtue. Such a disposition is the best soil for a hateful and cruel fanaticism. It is as wrong to impute every wickedness to Jews, Freemasons, "intellectuals," as it is to blame all crimes on the bourgeoisie, the nobility, and the powers that were. No; the root of evil is in me as well, and I must take my share of the responsibility and the blame. That was true before the revolution and it is true still.

All the evil in the world, and all the unhappiness, comes from the I-concept.

Lying is the greatest of all sins.

Lack of money is the root of all evil.

Pride and conceit were the original sin of man.

The belief that there is only one truth and that oneself is in possession of it seems to me the root of all the evil that is in the world

Anger is the key to every evil.