I can, therefore I am.
Who seeks shall find.
Without hard work, nothing grows but weeds.
The wise does at once what the fool does at last.
Always desire to learn something useful.
Only the educated are free.
Leap, and the net will appear.
The secret of getting ahead is getting started.
Know or listen to those who know.
Be kind whenever possible. It is always possible.
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.