Never complain and never explain.
Be thine own palace, or the world's thy jail.
To know oneself, one should assert oneself.
Only the educated are free.
After a storm comes a calm.
Without hard work, nothing grows but weeds.
Be gentle to all and stern with yourself.
Always desire to learn something useful.
The most effective way to do it, is to do it.
If you can dream it, you can do it.
The scientist is motivated primarily by curiosity and a desire for truth.
Science, almost from its beginnings, has been truly international in character. National prejudices disappear completely in the scientist's search for truth.