Robert Louis Stevenson,
Vailima Letters — Chapter I
(1895)
“ It is odd how difficult in this world it is to be armed. The double armour of this plant betrays it. In a thick tuft, where the leaves disappear, I thrust in my hand, and the bite of the thorns betrays the topmost stem. In the open again, and when I hesitate if it be clover, a touch on the leaves, and its fine sense and retractile action betrays its identity at once. Yet it has one gift incomparable. Rome had virtue and knowledge; Rome perished. The sensitive plant has indigestible seeds - so they say - and it will flourish for ever. ”
