I copied this from the Auschwitz Memorial Facebook page:
22 February 1943 | Sophie and Hans Scholl & Christoph Probs were executed by guillotine in Germany for their public resistance against the Nazi regime. They were members of White Rose movement called for active opposition to the Nazi party.
Hans, a medical student at the University of Munich, was 24. Sophie, a student of biology and philosophy, was 21. Christoph, a medical student, was 22.
Their activities started in Munich on 27 June 1942, and ended with the arrest of the core group by the Gestapo on 18 February 1943.
At great risk, the White Rose group conducted an anonymous leaflet and graffiti campaign that called for active opposition to the Nazi regime.
In total, the they authored six leaflets, which were multiplied and spread, in a total of about 15,000 copies. They denounced the Nazi regime's crimes and oppression, and called for resistance. In their second leaflet, they openly denounced the persecution and mass murder of the Jews.
In their attempt to stop the war effort, they advocated the sabotage of the armaments industry. “We will not be silent. We are your bad conscience. The White Rose will not leave you in peace!"
"For Hitler and his followers there is no punishment on this Earth commensurate with their crimes. But out of love for coming generations we must make an example after the conclusion of the war, so that no one will ever again have the slightest urge to try a similar action" - a fragment of the fourth leaflet.