Not to take in any partner who should be allowed to carry on any separate business, in which the partnership is not concerned.

Depend upon it, whatever other business your partner carries on, you run the risk of it as much as you do of your own; and you run the risk with this particular circumstance too, that you have the hazard without the profit or success: that is, without a share in the profit or success, which is very unequal and unfair.

I know cunning men will tell you, that there may be provision made so effectually in the articles of partnership, that the stock in partnership should be concerned in no other interest or engagements but its own; but let such cunning gentlemen tell me, if the partner meets with a disappointment in his other undertakings, which wounds him so deep as to break him, will it not affect the partnership thus far?
1.

That it may cause his stock to be drawn hastily out, and perhaps violently too.2.That it touches and taints the credit of the partner to be concerned with such a man; and though a man's bottom may support him, if it be very good, yet it is a blow to him, touches his credit, and makes the world stand a little at a stay about him, if it be no more, for a while, till they see that he shows himself upon the Exchange, or at his shop-door again, in spite of all the apprehensions and doubts that have been handed about concerning him.

Either of these are so essential to the tradesman, whose partner thus sinks by his own private breaches, in which the parnership is not concerned, that it is worth while to caution the tradesman against venturing.