Ifatfirst

2 clues
Start of a diehard motto
Start of some sage advice
Similar answers:
Afirst
Amanfirstwalksonthemoon
Aprilfirst
Aprilthefirst
Atfirst
Atfirstbite
Atfirstblush
Atfirstbrush
Atfirsthand
Atfirstitwasadeadlock
Atfirstsight
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Befirst
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Cominginfirst