No one can be perfectly happy till all are happy.

Education is preparation to live completely.

No phrase can convey the idea of surprise so vividly as opening the eyes and raising the eyebrows. A shrug of the shoulders would lose much by translation into words.

It is the function of parents to see that their children habitually experience the true consequences of their conduct.

Policeman are soldiers who act alone; soldiers are policeman who act in unison.

The idea of disembodied spirits is wholly unsupported by evidence, and I cannot accept it.

That feelings of love and hate make rational judgments impossible in public affairs, as in private affairs, we can clearly enough see in others, though not so clearly in ourselves.