Things do not happen. Things are made to happen.

Begin to be now what you will be hereafter.

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

The most effective way to do it, is to do it.

It's always too early to quit.

Never complain and never explain.

I can, therefore I am.

To know oneself, one should assert oneself.

If you think you can do it, you can.