Meanings

necessary and sufficient condition

essential condition

mortality

sure punishment or reward

desperately

to judge as necessary

must-read (book)

indispensable case

daily (living) necessities

necessary expenses

conscious neglect

victory goes to the one who makes the first move

success on the first try (attempt)

Defeat is inevitable for one who goes second

as necessary (needed)

certain victory

killer technique

certain defeat

to need

certain fulfilment