For example: Platone in italian is Plato in english!
In italy we say:
Anassagora
Aristotele
Platone
Democrito
Talete
Eraclito
Parmendide
Zenone
Here are the customary English spellings of the names of a number of philosophers. The foreign names more or less follow the more or less standard customs for rendering foreign names into English. Some of them have changed over time, by the way. I know practically nothing about any of them (though I read a little bit of Plato when I was in college). In the case of Europeans who lived within the last few centuries, we usually just retain the spelling of their names in their own languages, although sometimes any diacritical marks get lost.
Anaxagoras, c. 500 BCE-428 BCE
Aristotle
Roger Bacon, c. 1214-1294 (English). Helped formulate the "scientific method."
George Berkeley, 1685-1753 (English). Nothing exists except in your mind. Samuel Johnson "refuted" him by kicking a rock.
Democritus, c. 460-360 BCE. Coined the word "atom."
Epicharmus of Cos, c. 540-450 BCE, formerly spelled "Epicharmos of Kos"
Heracleitus, c. 540-480 BCE. Everything is flux, you can't step twice into the same river.
Immanuel Kant (1724-1804)
John Locke (1632-1704), British philosopher and author of An Essay Concerning Human Understanding
Parmenides of Elea, b. c. 515 BCE
Bertrand Russell (English). Coauthor of Principia Mathematica.
Thales, c. 624 BCE–546 BCE
Zeno of Elea, c. 490-430 BCE
English speaking, and more empirical philosophers include David Hume*, John Locke, John Stuart Mill, Bertrand Russell, Santayana and also great writers. More contemporary are Alfred Ayer, Gilbert Ryle, Nelson Goodman, Willard Quine.
The spelling of the ancient philosophers doesn't vary too much between European languages.
*A Scot.
Here's a youtube link which lists many philosophers:
(Thankyou Monty Python!)