Robert C. Martin > Quotes > Quote > Jeroen liked it

“Slaves are not allowed to say no. Laborers may be hesitant to say no. But
professionals are expected to say no. Indeed, good managers crave someone who
has the guts to say no. It’s the only way you can really get anything done.”
― Robert C. Martin, The Clean Coder: A Code of Conduct for Professional Programmers