By concentrating on what, and leaving out why, mathematics is reduced to an empty shell.

— Paul Lockhart, A Mathematician's Lament (2008)

Source: https://profkeithdevlin.org/wp-content/uploads/2023/09/lockhartslament.pdf

From Lockhart's 2008 essay, carried in Keith Devlin's Devlin's Angle column.

Topics: learning, mathematics