Be gentle to all and stern with yourself.
To know oneself, one should assert oneself.
Go for it now. The future is promised to no one.
Things do not happen. Things are made to happen.
Always desire to learn something useful.
Be kind whenever possible. It is always possible.
What you do today can improve all your tomorrows.
After a storm comes a calm.
You never know what motivates you.
Problems are not stop signs, they are guidelines.
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.