Testimony spreads information. It is also widely acknowledged that it can transmit, possibly generate, propositional knowledgeKnowledgepropositional knowledge. But what about understanding? Can understanding be transmitted via testimony? The standard view in social epistemology has a straightforward answer to this question: no, it cannot. Understanding cannot be shared with others in the same way in which we share propositional knowledgeKnowledgepropositional knowledge. All a speaker can do via speech acts of assertions is to “plant the seed of understanding” in the hearer. Whether the seed then grows into a glorious plant or perishes in the soil, however, is not in the speaker’s hands; it is only up to the hearer. In this chapter, I argue that the standard view is probably mistaken, or at least not as well-supported as it might appear at first glance. While there are indeed differences in the way understanding and knowledge (sometimes) relate to testimony, we have no reason to assume that understanding cannot be testimonially transmitted.