What! alive, and so bold, O earth? - Percy Bysshe Shelley

Those who inflict must suffer, for they see The work of their own hearts, and this must be Our chastisement or recompense.

Thy wisdom speaks in me, and bids me dare Beacon the rocks on which high hearts are wreckt. I never was attached to that great sect, Whose doctrine is, that each one should select Out of the crowd a mistress or a friend, And all the rest, though fair and wise, commend To cold oblivion, though it is in the code Of modern morals, and the beaten road Which those poor slaves with weary footsteps tread, Who travel to their home among the dead By the broad highway of the world, and so With one chained friend, — perhaps a jealous foe, The dreariest and the longest journey go.

It is probable that what we call thought is not an actual being, but no more than the relation between certain parts of that infinitely varied mass, of which the rest of the universe is composed, and which ceases to exist as soon as those parts change their position with regard to each other.