Beware of your habits. The better they are the more surely they will be your undoing.
— Holbrook Jackson

That glittering hope is immemorial and beckons many men to their undoing.
Euripides undoing quote

Charisma becomes the undoing of leaders. It makes them inflexible, convinced of their own infallibility, unable to change.
— Peter Drucker

These deserters were our undoing. I shall have a good deal more to say about them before I finally lay down my pen, and I shall not hesitate to call them by their true name, the name with which they will be for ever branded before all the nations of the world.
— Christiaan Rudolf de Wet

Do not choose for your friends and familiar acquaintance those that are of an estate or quality too much above yours...You will hereby accustom yourselves to live after their rate in clothes, in habit, and in expenses, whereby you will learn a fashion and rank of life above your degree and estate, which will in the end be your undoing.
— undoing quotation by Matthew Hale