The science of mathematics performs more than it promises, but the science of metaphysics promises more than it performs.

Avarice has ruined more men than prodigality, and the blindest thoughtlessness of expenditure has not destroyed so many fortunes as the calculating but insatiable lust of accumulation.

A leveller has long ago been set down as a ridiculous and chimerical being, who, if he could finish his work to-day, would have to begin it again tomorrow.

Tyrants have not yet discovered any chains that can fetter the mind.

There are both dull correctness and piquant carelessness; it is needless to say which will command the most readers and have the most influence.

We cannot think too highly of our nature, nor too humbly of ourselves.

If you cannot inspire a woman with love of you, fill her above the brim with love of herself; all that runs over will be yours.