Chemistry ought to be not for chemists alone.
The devil is an angel too.
Sow the living part of yourselves in the furrow of life.
Only in solitude do we find ourselves; and in finding ourselves, we find in ourselves all our brothers in solitude.
Martyrs create faith, faith does not create martyrs.
Use harms and even destroys beauty. The noblest function of an object is to be contemplated.