He has given of himself untiringly and unselfishly. During the Siege of Paris she untiringly preached resistance to the Prussians. Jan Leemhorst, then president of Gammaster, untiringly propagated the use of this logo internationally. Michurin receives support from outstanding scientists of the country, and continues to work untiringly. She had served the school untiringly for 27 years. She resigned from the politics in 1968 and worked untiringly for the welfare of women. Tree worked untiringly to make Shakespeare popular with the theatregoing public.