Your faith is what you believe, not what you know.

The doubt of an earnest, thoughtful, patient and laborious mind is worthy of respect. In such doubt may be found indeed more faith than in half the creeds.

As memory may be a paradise from which we cannot be driven, it may also be a hell from which we cannot escape.

We are more disturbed by a calamity which threatens us than by one which has befallen us.

Those who believe in our ability do more than stimulate us. They create for us an atmosphere in which it becomes easier to succeed.

Be suspicious of your sincerity when you are the advocate of that upon which your livelihood depends.

Our prejudices are like physical infirmities — we cannot do what they prevent us from doing.