In religion as in politics it so happens that we have less charity for those who believe half our creed, than for those who deny the whole of it.

The society of dead authors has this advantage over that of the living: they never flatter us to our faces, nor slander us behind our backs, nor intrude upon our privacy, nor quit their shelves until we take them down.

Patience is the support of weakness impatience the ruin of strength.

The first requisite for success is the ability to apply your physical and mental energies to one problem incessantly without growing weary.

Constant success shows us but one side of the world adversity brings out the reverse of the picture.