“Conceal me what I am, and be my aid for such disguise as haply shall become the form of my intent.”

Jones, Alice. “ Ten People Who Changed the World: Ai Weiwei, Chinese Artist, Became a Truly Global Force http://www.independent.co.uk/arts-entertainment/art/features/ten-people-who-changed-the-world-ai-weiwei-chinese-artist-became-a-truly-global-force-6282327.html.” Independent, December 31, 2011.
2010-, 2011

Variant: Another belief of mine: that everyone else my age is an adult, whereas I am merely in disguise.
Source: Cat's Eye (1988)

Source: Letters to Felice‎

From Zoran Djindjic's speech held to students of Banja Luka University, 20.02.2003.

Our Cry for Liberty, p. xv
Give Me Liberty! (1998)

On writing in “‘What is a heart? You have an organ in your body and you have a symbol of love’” https://www.theguardian.com/books/2017/apr/28/maylis-de-kerangal-interview-wellcome-prize-writing in The Guardian (2017 Apr 28)

Source: Flatland: A Romance of Many Dimensions (1884), PART II: OTHER WORLDS, Chapter 22. How I Then Tried to Diffuse the Theory of Three Dimensions by Other Means, and of the Result
Context: At times my spirit was too strong for me, and I gave vent to dangerous utterances. Already I was considered heterodox if not treasonable, and I was keenly alive to the danger of my position; nevertheless I could not at times refrain from bursting out into suspicious or half-seditious utterances, even among the highest Polygonal and Circular society. When, for example, the question arose about the treatment of those lunatics who said that they had received the power of seeing the insides of things, I would quote the saying of an ancient Circle, who declared that prophets and inspired people are always considered by the majority to be mad; and I could not help occasionally dropping such expressions as "the eye that discerns the interiors of things", and "the all-seeing land"; once or twice I even let fall the forbidden terms "the Third and Fourth Dimensions". At last, to complete a series of minor indiscretions, at a meeting of our Local Speculative Society held at the palace of the Prefect himself, — some extremely silly person having read an elaborate paper exhibiting the precise reasons why Providence has limited the number of Dimensions to Two, and why the attribute of omnividence is assigned to the Supreme alone — I so far forgot myself as to give an exact account of the whole of my voyage with the Sphere into Space, and to the Assembly Hall in our Metropolis, and then to Space again, and of my return home, and of everything that I had seen and heard in fact or vision. At first, indeed, I pretended that I was describing the imaginary experiences of a fictitious person; but my enthusiasm soon forced me to throw off all disguise, and finally, in a fervent peroration, I exhorted all my hearers to divest themselves of prejudice and to become believers in the Third Dimension.Need I say that I was at once arrested and taken before the Council?

En una noche oscura,
con ansias, en amores inflamada,
¡oh dichosa ventura!,
salí sin ser notada,
estando ya mi casa sosegada;
One dark night, fired with love's urgent longings — ah, the sheer grace! —
I went out unseen, my house being now all stilled.
In darkness, and secure, by the secret ladder, disguised, — ah, the sheer grace! — in darkness and concealment, my house being now all stilled.
Variant translation by Kieran Kavanaugh and Otilio Rodriguez (1991)
Upon a darkened night the flame of love was burning in my breast
And by a lantern bright I fled my house while all in quiet rest.
Shrouded by the night and by the secret stair I quickly fled.
The veil concealed my eyes while all within lay quiet as the dead
Variant adapted for music by Loreena McKennitt (1994)
Dark Night of the Soul

Post-war years (1945–1955)
Source: On the (July 26, 1945) landslide electoral defeat that turned him out of office near the end of WWII, in The Second World War, Volume VI : Triumph and Tragedy (1953), Chapter 40 (The End of My Account), p. 583.