To know oneself, one should assert oneself.
The dog that trots about finds a bone.
Well done is better than well said.
I can, therefore I am.
Who seeks shall find.
Either you run the day or the day runs you.
Be kind whenever possible. It is always possible.
Begin to be now what you will be hereafter.
Without hard work, nothing grows but weeds.
Expect problems and eat them for breakfast.
The best museums and museum exhibits about science or technology give you the feeling that, hey, this is interesting, but maybe I could do something here, too.