From The English Governess at the Siamese Court, by Anna Harriette Leonowens, p. 122:
We are prone to ignore or to condemn that which we do not clearly understand; and thus it is, and on no better ground, that we deny that there are influences in the religions of the East to render their followers wiser, nobler, purer. And yet no one of respectable intelligence will question that there have been, in all ages, individual pagans who, by the simplicity of their doctrine and the purity of their practice, have approached very nearly to the perfection of the Christian graces; and that they were, if not so much the better for the religion they had, at least far, far better than if they had had no religion at all. It is not, however, in human nature to approve and admire any course of life without inquiring into the spirit of the law that regulates it. Nor may it suffice that the spirit is there, if not likewise the letter,--that is to say, the practice. The best doctrine may become the worst, if imperfectly understood, erroneously interpreted, or superstitiously followed.
And from p. 124:
Many have missed seeing what is true and wise in the doctrine of Buddha because they preferred to observe it from the standpoint and in the attitude of an antagonist, rather than of an inquirer. To understand aright the earnest creed and hope of any man, one must be at least sympathetically en rapport with him,--must be willing to feel, and to confess within one's self, the germs of those errors whose growth seems so rank in him. In the humble spirit of this fellowship of fallibility let us draw as near as we may to the hearts of these devotees and the heart of their mystery.