Her countenance was all expression; her eyes were not dark but impenetrably deep; you seemed to discover space after space in their intellectual glance.

I also became a poet, and for one year lived in a Paradise of my own creation; I imagined that I also might obtain a niche in the temple where the names of Homer and Shakespeare are consecrated.

Be men, or be more than men. Be steady to your purposes and firm as a rock. This ice is not made of such stuff as your hearts may be; it is mutable and cannot withstand you if you say that it shall not.

I am not a person of opinions because I feel the counter arguments too strongly.

I love man as my fellow; but his scepter, real, or usurped, extends not to me, unless the reason of an individual demands my homage; and even then the submission is to reason, and not to man.

What can stop the determined heart and resolved will of man?

Nothing contributes so much to tranquillize the mind as a steady purpose- a point on which the soul can focus its intellectual eye

My spirit will sleep in peace; or if it thinks, it will not surely think thus. Farewell.

I see by your eagerness, and the wonder and hope which your eyes express, my friend, that you expect to be in formed of the secret with which I am acquainted. That cannot be.

A human being in perfection ought always to preserve a calm and peaceful mind and never to allow passion or a transitory desire to disturb his tranquility.

I was seized by remorse and the sense of guilt, which hurried me away to a hell of intense tortures as no language can describe

I am malicious because I am miserable

Accursed creator! Why did you form a monster so hideous that even you turned from me in disgust?

The different accidents of life are not so changeable as the feelings of human nature.

Of what a strange nature is knowledge! It clings to a mind when it has once seized on it like a lichen on a rock." - Frankenstein p115

A mind of moderate capacity which closely pursues one study must infallibly arrive at great proficiency in that study.

Live, and be happy, and make others so.

My heart was fashioned to be susceptible of love and sympathy, and when wrenched by misery to vice and hatred, it did not endure the violence of the change without torture such as you cannot even imagine.

The labours of men of genius, however erroneously directed, scarcely ever fail in ultimately turning to the solid advantage of mankind.

Nothing is so painful to the human mind as a great and sudden change. The sun might shine, or the clouds might lour: but nothing could appear to me as it had done the day before.

My education was neglected, yet I was passionately fond of reading.

You are my creator, but I am your master; Obey!

I could not understand why men who knew all about good and evil could hate and kill each other.

The fallen angel becomes a malignant devil.