“The iron hand crush'd the Tyrant's head
And became a Tyrant in his stead.”

As quoted in Life and Memoirs of Algernon Sidney; his father (Robert Sidney, 2nd Earl of Leicester) wrote to him (30 August 1660) https://books.google.com/books?id=zUENAAAAYAAJ&pg=PA94&dq=: "It is said that the University of Copenhagen brought their album unto you, desiring you to write something; and that you did scribere in albo these words".

Cited in: Kabir, Hajara Muhammad (2010). Northern women development. [Nigeria]. ISBN 978-978-906-469-4. OCLC 890820657. <br class="br"> https://historicipswich.org/2022/01/18/abigail-adams-to-john-adams-all-men-would-be-tyrants-if-they-could/

Source: Meditations (c. AD 121–180), Book VIII, 41

Written in an Album (1842)l compare: "Manus haec inimica tyrannis / Ense petit placidam sub libertate quietem", Algernon Sidney, From the Life and Memoirs of Algernon Sidney.

Letter to John Adams (31 March 1776), published in Familiar Letters of John Adams and his wife Abigail Adams (1875) edited by Charles Francis Adams, p. 147
Context: I long to hear that you have declared an independency. And by the way, in the the new Code of Laws which I suppose it will be necessary for you to make I desire you would Remember the Ladies, and be more generous and favourable to them than your ancestors. Do not put such unlimited power into the hands of the Husbands. Remember all Men would be tyrants if they could. If particular care and attention is not paid to the Ladies we are determined to foment a Rebellion, and will not hold ourselves bound by any Laws in which we have no voice, or Representation.
That your Sex are Naturally Tyrannical is a Truth so thoroughly established as to admit of no dispute, but such of you as wish to be happy willingly give up the harsh title of Master for the more tender and endearing one of Friend. Why, then, not put it out of the power of the vicious and the Lawless to use us with cruelty and indignity with impunity? Men of Sense in all Ages abhor those customs which treat us only as the vassals of your sex; regard us then as Beings placed by Providence under your protection, and in imitation of the Supreme Being make use of that power only for our happiness.

Book V,1314b.39
Politics

This quote was actually composed by Louis Nizer, and published in his book, Between You and Me (1948).
Misattributed
Variant: He who works with his hands is a laborer. He who works with his hands and his head is a craftsman. He who works with his hands and his head and his heart is an artist.

Soyez résolus à ne plus servir, et vous voilà libres. Je ne vous demande pas de le pousser, de l'ébranler, mais seulement de ne plus le soutenir, et vous le verrez, tel un grand colosse dont on a brisé la base, fondre sous son poids et se rompre.
Discourse on Voluntary Servitude (1548)

Source: Lost in Translation (1995), Chapter 8 (p. 150)