A man always has two reasons for what he does-a good one and the real one.

J. Pierpont Morgan

Reason has always existed, but not always in a reasonable form.

Karl Marx (1818 - 1883)

Do not banish¹ reason for inequality; but let your reason serve to make the truth appear where it seems hid, and hide the false seems true.

William Shakespeare (1564 - 1616), Measure for Measure, Act V, sc. 1

Every why hath a wherefore.

William Shakespeare (1564 - 1616), The Comedy of Errors, Act II, sc. 2

His reasons are as two grains of wheat his in two bushels of chaff²: you shall seek all day ere you find them, and when you have them, they are not worth the search.

William Shakespeare (1564 - 1616), The Merchant of Venice, Act I, sc. 1

Many that are not mad have, sure, more lack of reason.

William Shakespeare (1564 - 1616), Measure for Measure, Act V, sc. 1

Strong reasons make strong actions.

William Shakespeare (1564 - 1616), King John, Act III, sc. 4

Sure, he that made us with such large discourse³, looking before and after, gave us not that capability⁴ and god-like reason to fust in us unus'd.

William Shakespeare (1564 - 1616), Hamlet, Act IV, sc. 4