“There is nothing more deceptive than an obvious fact.”

Anything is better than stagnation.

Any truth is better than indefinite doubt.

Circumstantial evidence is a very tricky thing. It may seem to point very straight to one thing, but if you shift your own point of view a little, you may find it pointing in an equally uncompromising manner to something entirely different.

There are always some lunatics about. It would be a dull world without them.

One must wait till it comes.

It may be that you are not yourself luminous, but that you are a conductor of light. Some people without possessing genius have a remarkable power of stimulating it.

Healthy scepticism is the basis of all accurate observation.

The future was with Fate. The present was our own.

Skill is fine, and genius is splendid, but the right contacts are more valuable than either.

I am an omnivorous reader with a strangely retentive memory for trifles.

It is with nations as it is with individuals. A book of history is a book of sermons.

The individual man is an insoluble puzzle, in the aggregate he becomes a mathematical certainty.

What you do in this world is a matter of no consequence. The question is what can you make people believe you have done.

Violence does, in truth, recoil upon the violent, and the schemer falls into the pit which he digs for another.

It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.

I am not the law, but I represent justice so far as my feeble powers go.

Ruthven surmised that he had hit upon some of the central deceptions which had wrecked him and reduced him and so many of his colleagues to this condition.

Deception is a sort of seduction. In love and war, adultery and espionage, deceit can only succeed if the deceived party is willing, in some way, to be deceived.

The broad outlines of the Double Cross deception have been known since 1972, when Sir John Masterman, the former chairman of the double agent committee, controversially published his account of the operation in defiance of official secrecy.

You know, your species [humans] has the most amazing capacity for self-deception, matched only by its ingenuity in trying to destroy itself.

What destroys us most effectively is not a malign fate but our own capacity for self-deception and for degrading our own best self.

Mom used to say that politeness is deception in pretty packaging

Men are so simple and so much inclined to obey immediate needs that a deceiver will never lack victims for his deceptions.

Since then [1958 Coup in Iraq], reality started to take another form in my mind. Hence, I was aware of deception of our senses.