Man is distinguished, not only by his reason; but also by this singula >>
Understanding is nothing else than conception caused by speech. >>
There is no such thing as perpetual tranquillity of mind while we live >>
The alchemists in their search for gold discovered many other things o >>
Every age has a keyhole to which its eye is pasted. >>
Curiosity is as much the parent of attention, as attention is of memor >>
Curiosity is the lust of the mind.