If you would know what nobody knows, read what everybody reads, just one year afterwards.

If a teacher have any opinion which he wishes to conceal, his pupils will become as fully indoctrinated into that as into any which he publishes.

It is doubtless a vice to turn one's eyes inward too much, but I am my own comedy and tragedy.

The lessons of science should be experimental also. The sight of a planet through a telescope is worth all the course on astronomy; the shock of the electric spark in the elbow outvalues all theories; the taste of the nitrous oxide, the firing of an artificial volcano, are better than volumes of chemistry.

What you do speaks so loud that I cannot hear what you say.

When the boys come into my yard for leave to gather horse-chestnuts, I own I enter into nature's game, and affect to grant the permission reluctantly, fearing that any moment they will find out the imposture of that showy chaff. But this tenderness is quite unnecessary; the enchantments are laid on very thick. Their young life is thatched with them. Bare and grim to tears is the lot of the children in the hovel I saw yesterday; yet not the less they hang it round with frippery romance, like the children of the happiest fortune.

The hearing ear is always found close to the speaking tongue.