Related:

• Every art and every faculty contemplates certain things as its principal objects.
  -- Epictetus (c. 60 AD) -- Discourses, Book i, Chap. xx...
• Difficulties are things that show what men are. -- Epictetus (c.
  60 AD) -- Discourses, Book i, Chap. xxiv...
• The materials of action are variable, but the use we make of them should be constant.
  -- Epictetus (c. 60 AD) -- How Nobleness of Mind may be consistent with Prudence, -- Discourses, Book ii, Chap....
• Practise yourself, for heaven's sake, in little thing
  and thence proceed to greater. -- Epictetus (c. 60 AD) -- Discourses, Book i, Chap. xviii...
• In theory there is nothing to hinder our following what we are taugh
  but in life there are many things to draw us aside....
• Appearances to the mind are of four kinds. Things either are what they appear to be
  or they neither are, nor appear to be; or they are, and do not appear to be...
• Reason is not measured by size or height, but by principle.
  -- Epictetus (c. 60 AD) -- Discourses, Book i, Chap. xii...
• The essence of good and evil is a certain disposition of the will.
  -- Epictetus (c. 60 AD) -- Of Courage, -- Discourses, Book i, Chap. xxix...
• Reckon the days in which you have not been angry. I used to be angry every day
  ow every other day; then every third and fourth day...