"Whatever the issue, her response was shaped and motivated by the dictates of her conscience. ... She was incapable of political manipulation, and of self-interest in the normal sense. Hysterically indecisive when her conscience was not engaged, she could be both obstinate and ruthless when she saw a clear path of duty before her."
January 1, 1970
https://en.wikiquote.org/wiki/Mary_I_of_England