Noun
the quality of being honest and straightforward in attitude and speech
ability to make judgments free from discrimination or dishonesty
Source: WordNet[...] for the Doctor observed, that no man takes upon himself small blemishes without supposing that great abilities are attributed to him; and that, in short, this affectation of candour or modesty was but another kind of indirect self-praise, and had its foundation in vanity. James Boswell
Candour is the brightest gem of criticism. Benjamin Disraeli
The Mercantile System still had a certain artless Catholic candour and did not in the least conceal the immoral nature of trade. ... But when the economic Luther, Adam Smith, criticised past economics things had changed considerably. ... Protestant hypocrisy took the place of Catholic candour. Friedrich Engels
Candour breeds hatred. Latin Proverb
Candour once went further boldly and in smiles, but it crept home in tatters and tears. American Proverb
Candour will lose you some friends, but not as many as deceit. American Proverb