"For wealth disappears, the most magnificent houses fall into decay, the most numerous family at some time or another comes to an end: the greatest and the most prosperous kingdoms can be overthrown: b…"

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

"The true botanist is not one who knows many plants, but one who knows how to find them."

"The only true knowledge is that which is acquired through the senses."

"If I have been of any service to the world, it is due to my love of animals and plants."