Gleanings — Paragraph 14
Source (Arabic)
مراتب عاجز باشد يا نرسيده باشد بايد بکمال لطف و شفقت با او تکلّم نمايند و او را متذکّر کنند من دون آنکه در خود فضلی و علوّی مشاهده نمايند أصل اليوم أخذ از بحر فيوضاتست ديگر نبايد نظر بکوچک و بزرگی
Translation
Show forbearance and benevolence and love to one another. Should anyone among you be incapable of grasping a certain truth, or be striving to comprehend it, show forth, when conversing with him, a spirit of extreme kindliness and goodwill. Help him to see and recognize the truth, without esteeming yourself to be, in the least, superior to him, or to be possessed of greater endowments.