Once Yakusan, the famous Zen master in China, was asked to give the monks a lecture. “It has been a long time since you gave us a lecture, so please give a lecture.” After Sesshin, he went up to the altar and came down, and went his room without saying anything. So, for him, one minute was enough. For me, it takes twenty minutes; for him, one minute.
His Jisha asked him, after he went back to his room, “Why didn't you give them a lecture, some word.” And he said, “I am a Zen master. So I will not say anything. If you want to study Zen, you should listen to some Buddhist philosopher and he will explain it in detail. I am a Zen Master, and to practice with you is my vow. For me there is no need to speak, and for my students there is no need to hear a lecture.”
—cuke.com/ig for links to the source of the image. Excerpt from Shunryu Suzuki lecture 69-04-19 as found on shunryusuzuki.com, edited by PF. Go to instagram.com/cuke_archives for the Instagram version.