It is better to do one's own duty, however defective it may be, than to follow the duty of another, however well one may perform it. He who does his duty as his own nature reveals it, never sins.
The animals of the world exist for their own reasons. They were not made for humans any more than black people were made for white, or women created for men.
Genius detects through the fly, through the caterpillar, through the grub, through the egg, the constant individual; through countless individuals the fixed species; through many species the genus; through all genera the steadfast type; through all the kingdoms of organized life the eternal unity. Nature is a mutable cloud which is always and never the same.
The fourth (of the four cardinal virtues) is supportiveness: this manifests as service to others without expectation of reward. (Paraphrased: Such service is not a mere conforming to some external rule of behavior, but instead a manifestation of your original nature).
It is only now and then, in a jungle, or amidst the towering white menace of a burnt or burning Australian forest, that Nature strips the moral veils from vegetation and we apprehend its stark ferocity.