He has now had experience of prisons and chains, on the charge of teaching error, or of being a dangerous enthusiast. One of the calmest and coolest of men, who never acted, but he first calculated, and who never allowed himself to approach a conclusion, without first freeing himself from all bias and impulse, he had suffered repeated arrest for setting people beside themselves, for moving them to give up all they had in behalf of piety, or charity, and inducing them to go and live on alms themselves; nay, perhaps throw in their lives, talents and acquirements, to serve others gratis. The founder of the Jesuits, himself the first of an Order which has the reputation of being the staunchest upholder, as well of authority in every rank of society, as of the truths taught by the Catholic Church, was put in chains, or arraigned by the ecclesiastical authorities almost wherever he appeared, though always acquitted as blameless. In a letter written at a subsequent period of his life to King John III of Portugal, Ignatius sums up his experiences, as including two imprisonments, at Alcalà and Salamanca; three judicial investigations, at Alcalà, Salamanca, and Paris; later on, another process at Paris; then one at Venice; finally another at Rome;--eight investigations about this one man in Spain, France, and Italy.[10] Wherever he came, in after life, it passed as a proverb among the Fathers, that his appearance was the sure harbinger of a storm, soon to break out against them somewhere, in the social or religious world. He braved all this fury in his own manner, weighing as deliberately every word he spoke, and measuring every step he took, as when he had stood in the breach of the ramparts at Pampeluna. But his personal experience made him commit to the sacred keeping of the "Spiritual Exercises" an important principle of liberal and humane prudence. It is couched in the first words of his little book, to guide teacher and learner alike. He says:-- "In the first place, it is to be supposed that every pious Christian man should be more ready to interpret any obscure proposition of another in a good rather than a bad sense. If, however, he cannot defend the proposition in any way, let him inquire of the speaker himself; and, if then the speaker is found to be mistaken in sentiment or understanding, let him correct the same kindly. If this is not enough, let him employ all available means to render him sound in principle and secure from error."