"We do not know, in most cases, how far social failure and success are due to heredity, and how far to environment. But environment is the easier of the two to improve"

In this quote, John B. S. Haldane is talking about the factors that add to social failure and success. He acknowledges that it is challenging to determine the precise function of heredity and environment in forming an individual's life results. Nevertheless, he believes that enhancing one's environment is the more possible choice. This might mean developing a much better social and financial environment for individuals to grow in, rather than trying to change their hereditary makeup. Haldane's declaration highlights the significance of attending to societal issues and developing a helpful environment for individuals to reach their complete potential.