I demand of you, and of the whole world, that you show me a generic character... by which to distinguish between Man and Ape. I myself most assuredly know of none.

The plant kingdom covers the entire earth, offering our senses great pleasure and the delights of summer.

The first step in wisdom is to know the things themselves; this notion consists in having a true idea of the objects; objects are distinguished and known by classifying them methodically and giving them appropriate names. Therefore, classification and name-giving will be the foundation of our science.

Linnea.... A plant of Lapland, lowly, insignificant, disregarded, flowering but for a brief space - from Linnaeus who resembles it.

It is the genus that gives the characters, and not the characters that make the genus.

Botany is based on fixed genera.

In natural science the principles of truth ought to be confirmed by observation.