The dog that trots about finds a bone.
Be kind whenever possible. It is always possible.
If you can dream it, you can do it.
Be thine own palace, or the world's thy jail.
Quality is not an act, it is a habit.
Things do not happen. Things are made to happen.
If you're going through hell, keep going.
After a storm comes a calm.
Problems are not stop signs, they are guidelines.
Be gentle to all and stern with yourself.
In hard-core science fiction in which characters are responding to a change in environment, caused by nature or the universe or technology, what readers want to see is how people cope, and so the character are present to cope, or fail to cope.