Garner up pleasant thoughts in your mind, for pleasant thoughts make pleasant lives.

Yet I do seriously and on good grounds affirm it possible to make a flying chariot in which a man may sit and give such a motion unto it as shall convey him through the air. And this perhaps might be made large enough to carry divers men at the same time, together with food for their viaticum and commodities for traffic.

'Tis certain that our senses are extremely disproportioned for comprehending the whole compass and latitude of things.

Science doesn't deliver even that much truth it delivers empirically adequate generalisations, and that is all we need.

It is an excellent rule to be observed in all disputes, that men should give soft words and hard arguments that they should not so much strive to vex as to convince each other.