“I hold a mouses wit not worth a leke,
That hath but on hole for to sterten to.”

"The Wife of Bath her Prologue, from Chaucer" (c.1704, published 1713), lines 298-299. Compare: "I hold a mouses wit not worth a leke, That hath but on hole for to sterten to", Geoffrey Chaucer, Canterbury Tales, "The Wif of Bathes Prologue", line 6154; "The mouse that hath but one hole is quickly taken", George Herbert, Jacula Prudentum.

Source: Macbeth: Playgoer's Edition

Compare Poor Richard's Almanack (1745) : An ounce of wit that is bought, Is worth a pound that is taught.
Introductio ad prudentiam: Part II (1727), Gnomologia (1732)

Commonplace notebooks, Part I

Truculentus, Act IV, sc. iv, line 15.
Variant translation: Consider the little mouse, how sagacious an animal it is which never entrusts its life to one hole only. (translator unknown)
Truculentus

" Will Waterproof's Lyrical Monologue http://whitewolf.newcastle.edu.au/words/authors/T/TennysonAlfred/verse/englishidyls/willwaterproof.html", st. 6 (1842)
Context: I grow in worth, and wit, and sense,
Unboding critic-pen,
Or that eternal want of pence,
Which vexes public men,
Who hold their hands to all, and cry
For that which all deny them —
Who sweep the crossings, wet or dry,
And all the world go by them.

Source: Sonnet XXIII
Context: As an unperfect actor on the stage,
Who with his fear is put besides his part,
Or some fierce thing replete with too much rage,
Whose strength’s abundance weakens his own heart;
So I, for fear of trust, forget to say
The perfect ceremony of love’s right,
And in mine own love’s strength seem to decay,
O’ercharged with burthen of mine own love’s might.
O, let my books be then the eloquence
And dumb presagers of my speaking breast;
Who plead for love, and look for recompense,
More than that tongue that more hath more express’d.
O, learn to read what silent love hath writ:
To hear with eyes belongs to love’s fine wit.

A Foreword to Krazy (1946)
Context: A humbly poetic, gently clownlike, supremely innocent, and illimitably affectionate creature (slightly resembling a child's drawing of a cat, but gifted with the secret grace and obvious clumsiness of a penguin on terra firma) who is never so happy as when egoist-mouse, thwarting altruist-dog, hits her in the head with a brick. Dog hates mouse and worships "cat", mouse despises "cat" and hates dog, "cat" hates no one and loves mouse.

http://archives.radio-canada.ca/politique/provincial_territorial/clips/4212/
http://archives.cbc.ca/politics/provincial_territorial_politics/clips/776/
Mais j'ai confiance qu'un jour... y'a un rendez-vous normal avec l'Histoire que le Québec tiendra, et j'ai confiance qu'on sera là, ensemble, pour y assister.
Concession speech, 1980 Quebec referendum.