Curious things, habits. People themselves never knew they had them.

Agatha Christie (1890 - 1976)

Good habits result from resisting temptation.

Ancient Proverb

My problem lies in reconciling my gross habits with my net income.

Errol Flynn (1909 - 1959)

Habit is habit and not to be flung out of the window by any man, but coaxed¹ downstairs a step at a time.

Mark Twain (1835 - 1910)

Habit is habit, and not to be flung out the window by man, but coaxed downstairs, a step at a time.

Mark Twain (1835 - 1910)

Nothing is stronger than habit.

Ovid (43 BC - 17 AD), Ars Amatoria

The chains of habit are too weak to be felt until they are too strong to be broken.

Samuel Johnson (1709 - 1784)

How use doth breed a habit in a man!

William Shakespeare (1564 - 1616), "The Two Gentlemen of Verona", Act 5 scene 4