Quote by Charles Darwin
A grand and almost untrodden field of inquiry will be opened, on the causes and laws of variation, on correlation of growth, on the effects of use and disuse, on the direct actions of external conditions, and so forth.
Summary
This quote highlights the idea that a vast and unexplored area of study will emerge, concerning various aspects of variation and growth in organisms. It suggests that investigations will focus on understanding the reasons behind variability, the relationship between different traits, the impact of usage and neglect, the direct influence of environmental conditions, and more. In essence, the quote anticipates an expansive and enlightening field of research awaiting inquiry.