Be not careless in deeds, nor confused in words, nor rambling in thought.

The perfection of moral character consists in this, in passing every day as the last, and in being neither violently excited nor torpid nor playing the hypocrite.

Be not unwilling in what thou doest, neither selfish nor unadvised nor obstinate; let not over-refinement deck out thy thought; be not wordy nor a busybody.

The secret of all victory lies in the organization of the non-obvious.

Everything is mere opinion.

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

The whole universe is change and life itself is but what you deem it - either gratefully better than or bitterly worse than something else that you alone choose.