One advantage of asymmetric cryptography is that you can exchange data without sharing the ability to read it.

Put your little reception-room here beside the door, and get the whole width of your house frontage for a square hall, and an easy low-tread staircase running up the sides of it.

For though a Child quickly aſſent to this Propoſition, That an Apple is not Fire; when, by familiar Acquaintance, he has got the Idea's of thoſe two different things diſtinctly imprinted on his Mind, and has learnt that the names Apple and Fire ſtand for them; yet it will be ſome years after, perhaps, before the ſame Child will aſſent to this Propoſition, That it is impoſſible for the ſame thing to be, and not to be.

Where the competition is free, the rivalship of competitors, who are all endeavouring to justle one another out of employment, obliges every man to endeavour to execute his work with a certain degree of exactness.