Stop telling philosophers they shouldn't have money. No one has said that wisdom must come with poverty. A philosopher can own plenty of wealth. But it can't be wealth stolen from others or stained with someone else's blood. The philosopher must earn it without wronging anyone and without using shameful methods. The money must be earned honorably and spent honorably. It should be the kind of wealth that only jealous people would criticize. Make it as large as you want — it will still be honorable. As long as it includes things everyone would want to own, but nothing that someone else can rightfully claim as theirs.
Cease, then, forbidding philosophers to possess money: no one has condemned wisdom to poverty. The philosopher may own ample wealth, but will not own wealth that which has been torn from another, or which is stained with another's blood: his must be obtained without wronging any man, and without its being won by base means; it must be alike honourably come by and honourably spent, and must be such as spite alone could shake its head at. Raise it to whatever figure you please, it will still be an honourable possession, if, while it includes much which every man would like to call his own, there be nothing which any one can say is his own.