The world is mere change, and this life, opinion.

It doesn't hurt me unless I interpret its happening as harmful to me. I can choose not to.

In the morning, when you are sluggish about getting up, let this thought be present: 'I am rising to a man's work.'

Purge your mind of all aimless and idle thoughts, especially those that pry into the affairs of others or wish them ill.

When pain is unbearable it destroys us; when it does not it is bearable.

Never let the future disturb you. You will meet it, if you have to, with the same weapons of reason which today arm you against the present.

Remember that all is opinion.