Doubt is not the opposite of faith it is one element of faith. – Paul Tillich
Religion is the state of being grasped by an ultimate concern, a concern which qualifies all other concerns as preliminary and which itself contains the answer to the question of a meaning of our life. – Paul Tillich
Loneliness can be conquered only by those who can bear solitude. – Paul Tillich
Ever since the Crusades, when Christians from western Europe were fighting holy wars against Muslims in the near east, western people have often perceived Islam as a violent and intolerant faith – even though when this prejudice took root Islam had a better record of tolerance than Christianity. – Karen Armstrong