How do I speak up at work when I disagree with my boss's decision?

This is where moral courage lives—in that moment before you decide whether to stay silent or risk the conversation. I think about it this way: speaking up isn't about being right; it's about being honest about what you see. Start by getting curious rather than combative. Ask your boss genuine questions: 'Can you help me understand the reasoning here?' or 'What am I missing?' This approach respects their authority while creating space for real dialogue. Then, if you still disagree, be specific. Not 'This is wrong,' but 'I'm concerned about X because of Y.' Own your perspective without needing them to agree. The hardest part? Accepting that you might speak up and they might still decide differently. That's okay. You've done your part—you've brought your whole self and your real thinking to the table. That matters, even when the outcome isn't what you wanted. What matters most is that you can look yourself in the mirror knowing you didn't disappear just to keep things comfortable.