If youth is a fault, it is one that one gets rid of soon enough.

Oh God, how do the world and heavens confine themselves, when our hearts tremble in their own barriers!

Stupidity is without anxiety.

The field of experience is the whole universe in all directions. Theory remains shut up within the limits of human faculties.

We rather confess our moral errors, faults, and crimes than our ignorance.

Talent is nurtured in solitude; character is formed in the stormy billows of the world.

Give me those days with heart in riot, The depths of bliss that touched on pain, The force of hate, and love's disquiet- Ah, give me back my youth again!