A man is not hurt so much by what happens, as by his opinion of what happens.

All the events of our life are materials of which we can make what we will.

In every life there is one particular event that is decisive for the entire person-for his fate, his convictions, his passions.

The only true hope for civilization-the conviction of the individual that his inner life can affect outward events and that, whether or not he does so he is responsible for them.