He who refuses to embrace a unique opportunity loses the prize as surely as if he had failed.

If you want to change your life, do it flamboyantly and start immediately.

We are all potentially such sick men. The sanest and best of us are of one clay with lunatics and prison-inmates. And whenever we feel this, such a sense of the vanity of our voluntary career comes over us, that all our morality appears but as a plaster hiding a sore it can never cure, and all our well-doing as the hollowest substitute for that well-being that our lives ought to be grounded in, but alas! are not.

The science of logic never made a man reason rightly, and the science of ethics never made a man behave rightly. The most such sciences can do is to help us to catch ourselves up and check ourselves, if we start to reason or to behave wrongly; and to criticise ourselves more articulately after we have made mistakes.

Our acts of voluntary attending, as brief and fitful as they are, are nevertheless momentous and critical, determining us, as they do, to higher or lower destinies.

Anything you may hold firmly in your imagination can be yours.

The greatest enemy of any one of our truths may be the rest of our truths.