Let not your mind run on what you lack as much as on what you have already.
Marcus Aurelius

You have power over your mind - not outside events. Realize this, and you will find strength.
Marcus Aurelius

Death is a release from the impressions of the senses, and from desires that make us their puppets, and from the vagaries of the mind, and from the hard service of the flesh.
Marcus Aurelius

Nothing has such power to broaden the mind as the ability to investigate systematically and truly all that comes under thy observation in life.
Marcus Aurelius

Such as are your habitual thoughts, such also will be the character of your mind; for the soul is dyed by the thoughts.
Marcus Aurelius

Books are the blessed chloroform of the mind.
Oswald Chambers

Doublethink means the power of holding two contradictory beliefs in one's mind simultaneously, and accepting both of them.
George Orwell

If you are young and you drink a great deal it will spoil your health, slow your mind, make you fat - in other words, turn you into an adult.
P. J. O'Rourke

The mind is not a vessel to be filled but a fire to be kindled.
Plutarch

In words are seen the state of mind and character and disposition of the speaker.
Plutarch

People are generally better persuaded by the reasons which they have themselves discovered than by those which have come in to the mind of others.
Blaise Pascal

It is natural for the mind to believe and for the will to love; so that, for want of true objects, they must attach themselves to false.
Blaise Pascal

Atheism shows strength of mind, but only to a certain degree.
Blaise Pascal

The only means of strengthening one's intellect is to make up one's mind about nothing, to let the mind be a thoroughfare for all thoughts.
John Keats

A sound mind in a sound body, is a short, but full description of a happy state in this World: he that has these two, has little more to wish for; and he that wants either of them, will be little the better for anything else.
John Locke

Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.
John Locke

Reverie is when ideas float in our mind without reflection or regard of the understanding.
John Locke

Man consists of two parts, his mind and his body, only the body has more fun.
Woody Allen

The mind, once expanded to the dimensions of larger ideas, never returns to its original size.
Oliver Wendell Holmes

One's mind, once stretched by a new idea, never regains its original dimensions.
Oliver Wendell Holmes