What wretched doings come from the ardor of fame; the love of truth alone would never make one man attack another bitterly.

Animals manifestly enjoy excitement, and suffer from annul and may exhibit curiosity.

Even people who aren’t geniuses can outthink the rest of mankind if they develop certain thinking habits.

Life is nearly over with me. I have taken no pains about my style of writing.

Intelligence is based on how efficient a species became at doing the things they need to survive.

Hence, a traveller should be a botanist, for in all views plants form the chief embellishment.

I am dying by inches, from not having any body to talk to about insects.