Front Page Titles (by Subject) LETTER I. (I. 1 ): Henry Oldenburg 2 to B. de Spinoza. - The Chief Works of Benedict de Spinoza, vol. 2
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LETTER I. (I. 1 ): Henry Oldenburg 2 to B. de Spinoza. - Benedict de Spinoza, The Chief Works of Benedict de Spinoza, vol. 2 
The Chief Works of Benedict de Spinoza, translated from the Latin, with an Introduction by R.H.M. Elwes, vol. 2 De Intellectus Emendatione - Ethica. (Select Letters). Revised edition (London: George Bell and Sons, 1901).
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LETTER I. (I.1 )
Henry Oldenburg2to B. de Spinoza.
[Oldenburg, after complimenting Spinoza, asks him to enter into a philosophical correspondence.]
ILLUSTRIOUS Sir, and most worthy Friend,—
So painful to me was the separation from you the other day after our meeting in your retreat at Rhijnsburg, that it is my first endeavour, now that I am returned to England, to renew, as far as is possible by correspondence, my intercourse with you. Solid learning, conjoined with courtesy and refinement of manners (wherewith both nature and art have most amply endowed you), carries with it such charms as to command the love of every honourable and liberally-educated man. Let us then, most excellent sir, join hands in sincere friendship, and let us foster the feeling with every zealous endeavour and kind office in our power. Whatever my poor means can furnish I beg you to look on as your own. Allow me in return to claim a share in the riches of your talents, as I may do without inflicting any loss on yourself.
We conversed at Rhijnsburg of God, of extension, of infinite thought, of the differences and agreements between these, of the nature of the connection between the human soul and body, and further, of the principles of the Cartesian and Baconian philosophies.
But, as we then spoke of these great questions merely cursorily and by the way, and as my mind has been not a little tormented with them since, I will appeal to the rights of our newly cemented friendship, and most affectionately beg you to give me at somewhat greater length your opinion on the subjects I have mentioned. On two points especially I ask for enlightenment, if I may presume so far; first: In what do you place the true distinction between thought and matter? secondly: What do you consider to be the chief defects in the Cartesian and Baconian philosophies, and how do you think they might best be removed, and something more sound substituted? The more freely you write to me on these and similar subjects, the more closely will you tie the bonds of our friendship, and the stricter will be the obligation laid on me to repay you, as far as possible, with similar services.
There is at present in the press a collection of physiological discourses written by an Englishman of noble family and distinguished learning.1 They treat of the nature and elasticity of the air, as proved by forty-three experiments; also of its fluidity, solidity, and other analogous matters. As soon as the work is published, I shall make a point of sending it to you by any friend who may be crossing the sea. Meanwhile, farewell, and remember your friend, who is
Yours, in all affection and zeal,
London, Aug., 1661.
[1 ] The number of each letter as arranged in Van Vloten’s edition is given in brackets.
[2 ] See Introduction, p. xvi.
[1 ] Robert Boyle.