The original motto of the school was "ICH DIEN". At the first Old Boys' Dinner held in 1907, it was decided to use "NIHIL PER SALTUM" as a secondary motto. Prince of Wales' College is the only school in Sri Lanka which has two mottos.
A German phrase which translates to "I Serve".
NIHIL PER SALTUM
A Latin phrase which translates to "Step-by-Step"