Scrupling

verb

1. To hesitate or be reluctant to act due to considerations of conscience or expedience.
2. To excite scruples in; to cause to scruple.
3. To regard with suspicion; to question.
4. To question the truth of (a fact, etc.); to doubt; to hesitate to believe, to question.

   "I do not scruple to admit that all the Earth seeth but only half of the Moon."