basic general truth that underlies sth
guiding rules for personal behavior
general or scientific law shown in a way a thing works
"their principles of composition characterized all their works"
"a man of principle"
"he will not violate his principles"
"the principles of democracy"
"the principle of the conservation of mass"
"the principle of jet propulsion"
"the right-hand rule for inductive fields"
"the rationale for capital punishment"
"the principles of internal-combustion engines"
Weaponry, the main principle of his military success.
出自： R. L. Fox
He has both ability and principle(s).
I accept the suggestion in principle.
I accept the suggestion on principle.
He acted always on principle.