Man can learn nothing unless he proceeds from the known to the unknown.

The clearest way in the Universe is through a forest wilderness.

For all men strive to grasp what they do not know, while none strive to grasp what they already know; and all strive to discredit what they do not excel in, while none strive to discredit what they do excel in. This is why there is chaos.

Smell is a potent wizard that transports you across thousand of miles and all the years you have lived.

When you consider things like the stars, our affairs don't seem to matter very much, do they?

Jealousy feeds upon suspicion, and it turns into fury or it ends as soon as we pass from suspicion to certainty.

Satire is a sort of glass, wherein beholders do generally discover everybody's face but their own.

I do not know what I may appear to the world; but to myself I seem to have been only like a boy playing on the seashore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.

The poets and philosophers before me discovered the unconscious; what I discovered was the scientific method by which the unconscious can be studied.

If I have ever made any valuable discoveries, it has been owning more to patient attention, than to any other talent.

Man is a universe in little.

Leaders must understand that some people will inevitably sell out to the evil side. Don't waste your time wondering why; spend your time discovering who.

The greatest revolution of our generation is the discovery that human beings, by changing the inner attitudes of their minds, can change the outer aspects of their lives.

I went to the woods because I wished to live deliberately, to front only the essential facts of life, and see if I could not learn what it had to teach, and not, when I came to die, discover that I had not lived.

Men in general judge more from appearances than from reality. All men have eyes, but few have the gift of penetration.

Death is no more than passing from one room into another. But there's a difference for me, you know. Because in that other room I shall be able to see.

Because no battle is ever won he said. They are not even fought. The field only reveals to man his own folly and despair, and victory is an illusion of philosophers and fools.

The primary imagination I hold to be the living power and prime agent of all human perception, and as a repetition in the finite mind of the eternal act of creation in the infinite I am.

The growth of the mind is the widening of the range of consciousness, and . . . each step forward has been a most painful and laborious achievement.

It is an ecological, theological, and biological reality: The more we are in tune with eternal nature, the more we will be able to hear the still small voice within and have explosions of inspirational insight.

It may easily come to pass that a vain man may become proud and imagine himself pleasing to all when he is in reality a universal nuisance.

The shoe that fits one person pinches another; there is no recipe for living that suits all cases. Each of us carries his own life-form—an indeterminable form which cannot be superseded by any other.

The day will soon come when I will show the world that the transmission of power and speech without the aid of any wires is possible.

There will be obstacles. There will be doubters. There will be mistakes. But with hard work, there are no limits.

Impossible is just an opinion.