Dunia ini panggung sandiwara

Dunia ini panggung sandiwara adalah frasa yang diutarakan oleh karakter Jaques dalam karya William Shakespeare berjudul As You Like It. Monolog ini mengumpamakan dunia ini sebagai sebuah panggung sandiwara dan kehidupan manusia seperti sebuah sandiwara, dan menerangkan tentang tujuh tingkatan usia manusia, yang kadang-kadang disebut sebagai tujuh usia manusia: bayi, anak sekolah, pecinta, prajurit, keadilan, pantaloon, dan masa kanak-kanak kedua, "tanpa gigi, tanpa mata, tanpa rasa, tanpa semuanya". Maksud Shakespeare adalah bahwa dunia ini tidak lain adalah panggung teater dan manusia adalah aktornya. Sejak lahir manusia memasuki dunia teater dan terus berakting sesuai dengan usia mereka, hingga pada usia tua mereka ketika episode yang terakhir dimainkan.

Ini adalah salah satu bagian dari karya Shakespeare yang paling sering dikutip.

Monolog 
Lengkapnya:

"All the world's a stage,
And all the men and women merely players;
They have their exits and their entrances;
And one man in his time plays many parts,
His acts being seven ages. At first the infant,
Mewling and puking in the nurse's arms;
Then the whining school-boy, with his satchel
And shining morning face, creeping like snail
Unwillingly to school. And then the lover,
Sighing like furnace, with a woeful ballad
Made to his mistress' eyebrow. Then a soldier,
Full of strange oaths, and bearded like the pard,
Jealous in honour, sudden and quick in quarrel,
Seeking the bubble reputation
Even in the cannon's mouth. And then the justice,
In fair round belly with good capon lin'd,
With eyes severe and beard of formal cut,
Full of wise saws and modern instances;
And so he plays his part. The sixth age shifts
Into the lean and slipper'd pantaloon,
With spectacles on nose and pouch on side;
His youthful hose, well sav'd, a world too wide
For his shrunk shank; and his big manly voice,
Turning again toward childish treble, pipes
And whistles in his sound. Last scene of all,
That ends this strange eventful history,
Is second childishness and mere oblivion;
Sans teeth, sans eyes, sans taste, sans everything." — Jaques (Act II, Scene VII, lines 139-166)

Perkembangan manusia
Monolog
William Shakespeare