英和和英

I am playing it safe.

a trimming policy

eclecticism

asceticism

to act upon one's principles

egoism

militarism

a laissez-faire policy―（は政治、宗教は）―quietism

preferentialism

to keep aloof from all parties

a lyric style

an unbiassed policy

asceticism―monasticism

the disposition to favor or indulge in sentiment, called sentimentalism

to adhere to one's principles―stick to one's colours

I will adhere to my principles―stick to my colours.

an ideology called egoism

the condition of being greedy and selfish

conventionalism

Russophilism.

conservatism

to depart from one's principles

monarchism

monopolism

for principle's sake

moderatism―moderantism

utilitarianism

humanitarianism

the practice or the doctrine of strict adherence to or dependence on prescribed or external forms, called formalism

egoism

I am playing it safe.

Live up to one's principles.

the condition of being greedy and selfish

to act upon one's principles

a laissez-faire policy―（は政治、宗教は）―quietism

an ideology called egoism

to keep aloof from all parties

I will adhere to my principles―stick to my colours.

a trimming policy

to change one's principles―abandon one's principles―desert one's colours―turn one's coat

for principle's sake

to fight for one's principles

a principle called {principle of indication}

the practice or the doctrine of strict adherence to or dependence on prescribed or external forms, called formalism

to adhere to one's principles―stick to one's colours

teach doctrines to

to abandon one's principles―desert one's colours

a traitor to a cause

act up to one's principles

a condition of one's principles lacking clarity

to act upon one's principles

nihilism

to depart from one's principles

He has no principles

He is unprincipled.

as a matter of principle＝by principle

to adhere to one's principles―stick to one's colours

a doctrine called primitivism

a governing law of conduct that influences actions [Websters]

He does everything at haphazard.