It was very different when the masters of science sought immortality and power; such views, although futile, were grand: but now the scene was changed. The ambition of the inquirer seemed to limit itself to the annihilation of those visions on which my interest in science was chiefly founded. I was required to exchange chimeras of boundless grandeur for realities of little worth.

Oh! Stars and clouds and winds, ye are all about to mock me; if ye really pity me, crush sensation and memory; let me become as nought; but if not, depart, depart, and leave me in darkness.

Happiness is in its highest degree the sister of goodness.

All men hate the wretched; how, then, must I be hated, who am miserable beyond all living things! Yet you, my creator, detest and spurn me, thy creature, to whom thou are bound by ties only dissoluble by the annihilation of one of us.

A truce to philosophy!—Life is before me, and I rush into possession. Hope, glory, love, and blameless ambition are my guides, and my soul knows no dread. What has been, though sweet, is gone; the present is good only because it is about to change, and the to come is all my own.

If the study to which you apply yourself has a tendency to weaken your affections and to destroy your taste for those simple pleasures in which no alloy can possibly mix, then that study is certainly unlawful, that is to say, not befitting the human mind.

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.