I was obliged, at last, to come to the conclusion that the contemplation of nature alone is not sufficient to fill the human heart and mind.

I suffered most inconvenience from the difficulty of getting news from the civilised world down river, from the irregularity of receipt of letters, parcels of books and periodicals, and towards the latter part of my residence from ill health arising from bad and insufficient food.

Their elegant shape, showy colors, and slow, sailing mode of flight, make them very attractive objects, and their numbers are so great that they form quite a feature in the physiognomy of the forest, compensating for the scarcity of flowers.

The poor monkey, quietly seated on the ground, seemed to be in sore trouble at this display of anger.

The people were simpler, more peaceable and friendly in their manners and dispositions; and assassinations, which give the southern provinces so ill a reputation, were almost unknown.

... on these expanded membranes [butterfly wings] Nature writes, as on a tablet, the story of the modifications of species, so truly do all changes of the organisation register themselves thereon. Moreover, the same colour-patterns of the wings generally show, with great regularity, the degrees of blood-relationship of the species. As the laws of nature must be the same for all beings, the conclusions furnished by this group of insects must be applicable to the whole world.

I was obliged, at last, to come to the conclusion that the contemplation of nature alone is not sufficient to fill the human heart and mind.