Be gentle to all and stern with yourself.

To know oneself, one should assert oneself.

The dog that trots about finds a bone.

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

I can, therefore I am.

If you think you can do it, you can.

Things do not happen. Things are made to happen.

Begin to be now what you will be hereafter.

By failing to prepare, you are preparing to fail.