“It is not desirable or wise to make women men, but it is desirable to give them all their natural rights.” — Edward H. Clarke In an age when women were routinely denied access to education, Sex in Education was both controversial and transformative. Edward H. Clarke, a 19th-century Harvard physician, ignited a national debate by examining how traditional education systems failed women—not because of their abilities, but because of deep-rooted misconceptions about their biology and social role. While some of Clarke’s medical arguments reflect the biases of his time, the core message of a fair chance for girls continues to resonate. This pioneering work opened critical conversations on women’s health, rights, and access to higher education. It remains a landmark in the history of feminism, education reform, and the enduring fight for gender equality.