Compounds of 学ぶ

• 学ぶ
  (v5b) to study (in depth)
  to learn
  to take lessons in
  (P)
• 射を学ぶ
  (exp) to learn archery
• 教うるは学ぶの半ば
  (exp) (id) We learn by teaching
• 教うるは学ぶの半ばなり
  (exp) (arch) Teaching others teaches yourself