The Online Library of Liberty

A project of Liberty Fund, Inc.

• On the Improvement of the Understanding.
• The Ethics.
• Part I.: Concerning God.
• Part II.: Of the Nature and Origin of the Mind.
• Part III.: On the Origin and Nature of the Emotions.
• Part IV.: Of Human Bondage, Or the Strength of the Emotions.
• Part V.: Of the Power of the Understanding, Or of Human Freedom.
• Spinoza’s Correspondence.
• Letter I. (i. 1 ): Henry Oldenburg 2 to B. De Spinoza.
• Letter II. (ii.): Spinoza to Oldenburg.
• Letter III. (iii.): Oldenburg to Spinoza.
• Letter IV. (iv.): Spinoza to Oldenburg.
• Letter V. (v.): Oldenburg to Spinoza.
• Letter VI. (vi.): Spinoza to Oldenburg.
• Letter VII. (vii.): Oldenburg to Spinoza.
• Letter Viii (xi.): Oldenburg to Spinoza.
• Letter IX. (xiii.): Spinoza to Oldenburg.
• Letters X.—XIV. 1: Letter XIII. A.: Oldenburg to Spinoza.
• Letter XV. (xxxii.): Spinoza to Oldenburg.
• Letter XVI. (xxxiii.): Oldenburg to Spinoza.
• Letter XVII. (lxi.): Oldenburg to Spinoza.
• Letter XVIII. (lxii.): Oldenburg to Spinoza.
• Letter XIX. (lxviii.): Spinoza to Oldenburg.
• Letter XX. (lxxi.): Oldenburg to Spinoza.
• Letter XXI. (lxxiii.): Spinoza to Oldenburg.
• Letter XXII. (lxxiv.): Oldenburg to Spinoza.
• Letter XXIII. (lxxv.): Spinoza to Oldenburg.
• Letter XXIV. (lxxvii.): Oldenburg to Spinoza.
• Letter XXV. (lxxviii.)
• Letter XXV. A.: Oldenburg to Spinoza.
• Letter XXVI. (viii.): Simon De Vries 1 to Spinoza.
• Letter XXVII. (ix.): Spinoza to Simon De Vries.
• Letter XXVIII. (x.): Spinoza to Simon De Vries.
• Letter XXIX. (xii.): Spinoza to L. M. 1 (lewis Meyer).
• Letter XXIX. A. 1: Spinoza to Lewis Meyer.
• Letter XXX. (xvii.): Spinoza to Peter Balling. 1
• Letter XXXI. (xviii.): William De Blyenbergh 1 to Spinoza.
• Letter XXXII. (xix.): Spinoza to Blyenbergh.
• Letter XXXIII. (xx.): Blyenbergh to Spinoza.
• Letter XXXIV. (xxi.): Spinoza to Blyenbergh.
• Letter XXXV. (xxii.): Blyenbergh to Spinoza.
• Letter XXXVI. (xxiii.): Spinoza to Blyenbergh.
• Letter XXXVII. (xxiv.): Blyenbergh to Spinoza.
• Letter XXXVIII. (xxvii.): Spinoza to Blyenbergh.
• Letter XXXIX.: Spinoza to Christian Huyghens.
• Letter Xl. (xxxv.): Spinoza to Christian Huyghens.
• Letter Xli. (xxxvi.): Spinoza to Christian Huyghens.
• Letter Xli. A.: Spinoza to * * * * * 1 (may Or June, 1665).
• Letter Xlii. (xxxvii.): Spinoza to I. B. 1
• Letter Xliii. (xxxviii.): Spinoza to I. V. M. 1
• Letters Xliv., Xlv., Xlvi. (xxxix., Xl., Xli.): Spinoza to I. I. 2
• Xliv.
• Xlv.
• Xlvi.
• Letter Xlvii. (xliv.): Spinoza to I. I.
• Letter Xlviii.
• Letter Xlix.: Spinoza to Isaac Orobio. 1
• Letter L. (l.): Spinoza to Jarig Jellis.
• Letter Li. (xlv.): Godfrey Leibnitz to Spinoza.
• Letter Lii. (xlvi.): Spinoza to Leibnitz.
• Letter Liii. (xlvii.): Fabritius to Spinoza.
• Letter Liv. (xlviii.): Spinoza to Fabritius.
• Letter Lv. (li.): Hugo Boxel to Spinoza.
• Letter Lvi. (lii.): Spinoza to Hugo Boxel.
• Letter Lvii. (liii.): Hugo Boxel to Spinoza.
• Letter Lviii. (liv.): Spinoza to Hugo Boxel.
• Letter Lix. (lv.): Hugo Boxel to Spinoza.
• Letter Lx. (lvi.): Spinoza to Hugo Boxel.
• Letter Lxi. (lvii.): * * * * * to Spinoza. 1
• Letter Lxii. (lviii.): Spinoza to * * * * * 2 (the Hague, October, 1674).
• Letter Lxiii. (lix.): * * * * * to Spinoza. 1
• Letter Lxiv. (lx.): Spinoza to * * * * *. 1
• Letter Lxv. (lxiii.): G. H. Schaller to Spinoza. 1
• Letter Lxvi. (lxiv.): Spinoza to * * * * *. 1
• Letter Lxvii. (lxv.): * * * * * 1 to Spinoza.
• Letter Lxviii. (lxvi.): Spinoza to * * * * *. 1
• Letter Lxviii. A.: G. H. Schaller to Spinoza.
• Letter Lxviii. B.: Spinoza to Schaller.
• Letter Lxix. (lxxx.): * * * * * 1 to Spinoza.
• Letter Lxx. (lxxxi.): Spinoza to * * * * * 1
• Letter Lxxi. (lxxxii.): * * * * * 1 to Spinoza.
• Letter Lxxii. (lxxxiii.): Spinoza to * * * * 1
• Letter Lxxiii. (lxvii.): Albert Burgh to Spinoza.
• Letter Lxxiv. (lxxvi.): Spinoza to Albert Burgh.
• Letter Lxxv. (lxix.): Spinoza to Lambert Van Velthuysen ( Doctor of Medicine At Utrecht. ) 1

LETTER XVIII. (LXII.)

Oldenburg to Spinoza.

Our correspondence being thus happily renewed, I should be unwilling to fall short of a friend’s duty in the exchange of letters. I understand from your answer delivered to me on July 5, that you intend to publish your treatise in five parts. Allow me, I beg, to warn you by the sincerity of your affection for me, not to insert any passages which may seem to discourage the practice of religion and virtue; especially as nothing is more sought after in this degenerate and evil age than doctrines of the kind, which seem to give countenance to rampant vice.

However, I will not object to receiving a few copies of the said treatise. I will only ask you that, when the time arrives, they may be entrusted to a Dutch merchant living in London, who will see that they are forwarded to me. There is no need to mention, that books of the kind in question have been sent to me: if they arrive safely to my keeping, I do not doubt that I can conveniently dispose of some copies to my friends here and there, and can obtain a just price for them. Farewell, and when you have leisure write to

Yours most zealously,

Henry Oldenburg.

London, 22 July, 1675.