Things do not happen. Things are made to happen.

Be thine own palace, or the world's thy jail.

It's always too early to quit.

To know oneself, one should assert oneself.

You never know what motivates you.

Begin to be now what you will be hereafter.

Be gentle to all and stern with yourself.

Never complain and never explain.

The wise does at once what the fool does at last.