Ockam’s Razor
Entities should not be multiplied unnecessarily.
or
Plurality should not be posited without necessity.
(Pluralitas non est ponenda sine necessitate.)
Our belief in any particular natural law cannot have a safer basis than our unsuccessful critical attempts to refute it.
Do not enjoy yourself. Enjoy dances and theatres and joy-rides and champagne and oysters; enjoy jazz and cocktails and night-clubs…
Life for him was an adventure, perilous indeed, but men are not made for safe havens.