There never can be a man so lost as one who is lost in the vast and intricate corridors of his own lonely mind, where none may reach and none may save.

Jamais poderá haver um homem tão perdido como aquele que está perdido nos vastos e intricados corredores de sua própria mente solitária, onde ninguém pode alcançá-lo e ninguém pode salvá-lo. Nunca houve um homem tão desamparado quanto aquele que não consegue lembrar.

A man who can’t forget the past is a man who cannot plan for the future.

Not knowing how he lost himself, or how he recovered himself, he may never feel certain of not losing himself again.

If a man's at odds to know his own mind it's because he hasn't got aught but his mind to know it with.

No thinking being lives who, at some luminous point of his life of thought, has not felt himself lost amid the surges of futile efforts at understanding, or believing, that anything exists greater than his own soul.

No man can lose what he never had.

A man is a lonely thing.

The human condition: lost in thought.

Were a man to be totally deprived of memory, he would be incapable of forming any just opinion; everything about him would seem a chaos: he would have even his own history to ask from every one; and by not knowing how the world went in his absence, he would be at a loss to know how it ought to go on when he recovered, or rather, returned to it again. In like manner, though in a less degree, a too great inattention to past occurrences retards and bewilders our judgment in everything; while, on the contrary, by comparing what is past with what is present, we frequently hit on the true character of both, and become wise with very little trouble.

Man’s mind, once stretched by new ideas, never regains its original dimensions.

A man's dreams are a maze even he cannot know.

The mind can never be satisfied.

For if any man thinks that he is alone is wise — that in speech, or in mind, he hath no peer — such a soul, when laid open, is ever found empty.