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

Encyclopedia: By heart

• confident
• confidential
• confidential adviser-advisee relation
• confidential information
• confidentiality
• confidentially
• confidently
• confider
• confiding
• confidingly
• configuration
• configurational
• configurationism
• configure
• configured
• confine
• confined
• confinement
• confines
• confining
• confirm
• confirmable
• confirmation
• confirmation hearing
• confirmative