“Man is not worried by real problems so much as by his imagined anxieties about real problems.”
“There is only one way to happiness and that is to cease worrying about things which are beyond the power or our will.”
“We are not disturbed by what happens to us, but by our thoughts about what happens to us.”
“Don't seek to have events happen as you wish, but wish them to happen as they do happen, and all will be well with you.”
“What really frightens and dismays us is not external events themselves, but the way in which we think about them. It is not things that disturb us, but our interpretation of their significance.”
“It is our attitude toward events, not events themselves, which we can control. Nothing is by its own nature calamitous -- even death is terrible only if we fear it.”
“We suffer more often in imagination than in reality.”
“The mind that is anxious about future events is miserable.”
“If you are distressed by anything external, the pain is not due to the thing itself, but to your estimate of it; and this you have the power to revoke at any moment.”
“You have power over your mind - not outside events. Realize this, and you will find strength.”