“nothing can be more improving to a young naturalist than a journey in distant countries.”
Looking back on field travel, Darwin argues that unfamiliar places sharpen observation, comparison and practical independence for a developing naturalist.
Source details
Journal of Researches / The Voyage of the Beagle, concluding chapter, represented by the public-domain Project Gutenberg work. Darwin continues by describing novelty, comparison and self-reliance as benefits of travel; the recommendation reflects nineteenth-century natural-history practice and its historical colonial setting.