vanity

Then I said in my heart, As it happeneth to the fool, so it happeneth even to me and why then was I more wise? Then I said in my heart that this is also vanity. / For there is no more remembrance of the wise than the fool forever; seeing that which now is in the days to come shall all be forgotten. And how dieth the wise man? as the fool.

To make a man in love with you gives an instant hold on his vanity; and with that, you can do any thing. Vanity is the real lever with which Archimedes said he could move the earth; so, try what you can effect with Sir Robert.

She was sitting in front of her vanity, brushing out her hair.

It is a vanity to say that if two stones are dropped from a tower, the heavier will experience the greater acceleration.