1. By committing to memory
   "she knew the poem by heart"
   - by memory

Encyclopedia: By heart

• fisherman's knot
• fisherman's lure
• fishery
• fisheye
• fisheye lens
• fishgig
• fishhook
• fishily
• fishiness
• fishing
• fishing boat
• fishing eagle
• fishing expedition
• fishing gear
• fishing licence
• fishing license
• fishing line
• fishing net
• fishing permit
• fishing pole
• fishing rig
• fishing rod
• fishing season
• fishing smack
• fishing tackle