Be kind whenever possible. It is always possible.

The dog that trots about finds a bone.

You never know what motivates you.

To know oneself, one should assert oneself.

The secret of getting ahead is getting started.

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

Know or listen to those who know.

Begin to be now what you will be hereafter.

If you're going through hell, keep going.