Those who do not study are only cattle dressed in men's clothes.

Related:

• Those who do not study are like cattle dressed in men's
  clothing...
• Remembering is for those who have forgotten. --
  Chinese...
• A thorn defends the rose, harming only those who would steal the blossom.
  Chinese...
• Falling hurts least those who fly low.
  Chinese...
• Those who have free seats at a play hiss first.
  Chinese...
• Make happy those who are near, and those who are far will come.
  Chinese...
• Only men who are not interested in women are interested in women's clothes;
  men who like women never notice what they wear...