Charles Spurgeon on learning how to shut up:
Priceless as the gift of utterance may be, the practice of silence in some aspects far excels it. Do not think me a Quaker. Well, be it so. Herein I follow George Fox most lovingly; for I am persuaded that most of us think too much of speech, which after all is but the shell of thought. Quiet contemplation, still worship, unuttered rapture, these are mine when my best jewels are before me. Brethren, rob not your heart of the deep sea joys; miss not the far-down life, by for ever babbling among the broken shells and foaming surges of the shore.