The word of Mohammad is a voice direct from nature's own heart - all else is wind in comparison.

Sarcasm I now see to be, in general, the language of the devil; for which reason I have long since as good as renounced it.

Caution is the lower story of prudence.

Authors are the vanguard in the march of mind, the intellectual backwoodsmen, reclaiming from the idle wilderness new territories for the thought and activity of their happier brethren.

No pressure, no diamonds.

Rest is a fine medicine. Let your stomachs rest, ye dyspeptics; let your brain rest, you wearied and worried people of business; let your limbs rest, ye children of toil!

A man ought to inquire and find out what he really and truly has an appetite for; what suits his constitution; and that, doctors tell him, is the very thing he ought to have in general. And so with books.