1. Specific, established rules or fundamental truths that are accepted as true or proper
The company operates according to certain principles of transparency and honesty.
A empresa opera de acordo com certos princípios de transparência e honestidade.
2. Particular moral or ethical standards that guide behavior
She refused to compromise on certain principles that were important to her.
Ela recusou-se a comprometer certos princípios que eram importantes para ela.