Some persons have contended that mathematics ought to be taught by making the illustrations obvious to the senses. Nothing can be more absurd or injurious: it ought to be our never-ceasing effort to make people think, not feel.

Women have their heads in their hearts. Man seems to have been destined for a superior being; as things are, I think women generally better creatures than men. They have weaker appetites and weaker intellects but much stronger affections. A man with a bad heart has been sometimes saved by a strong head; but a corrupt woman is lost forever.

...in consequence of the film of familiarity and selfish solicitude, we have eyes yet see not, ears that hear not, and hearts that neither feel nor understand.

A man's as old as he's feeling. A woman as old as she looks.

Where virtue is, sensibility is the ornament and becoming attire of virtue. On certain occasions it may almost be said to become virtue. But sensibility and all the amiable qualities may likewise become, and too often have become, the panders of vice and the instruments of seduction.

The words in prose ought to express the intended meaning, and no more; if they attract attention to themselves, it is, in general, a fault.

That gracious thing, made up of tears and light.