When all the thoughts are concerning one thing and the person loses interest in other things, the melancholy begins.
CARL LINNAEUS
There is no generation from an egg in the Mineral Kingdom. Hence no vascular circulation of the humours as in the remaining Natural Kingdoms.
![Carl Linnaeus Quote - The species and the genus are always the work of nature [i.e. specially created]; the variety mostly that of circumstance; the class and the order are the work of nature and art.](https://minimalistquotes.com/wp-content/uploads/2021/10/the-species-and-the-genus-are-always-the-work-of-n-683x1024.jpg)
