"One does not have the right to criticize until he can do the same work without being criticized"

Next Quote

Send us people with initiative, who can carry themselves and others too; such as need to be carried hamper the work and weaken those who should be spending their strength on the heathen. Weaklings should be nursed at home! If any have jealousy, prides, or talebearing traits lurking about them, do not send them, nor any who are prone to criticize. Send only Pauls and Timothys; men who are full of zeal, holiness and power. All others are hindrances. If you send us ten such men the work will be done.

— Charles Studd