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Bruno Manser , one of the world 's most prominent rain forest crusaders has been missing for more than a year , and there is no official search for him . In the case of ' positives ' and ' privatives ' , if the subject does not exist at all , neither proposition is true , but even if the subject exists , it is not always the fact that one is true and the other false . Peoples Network ( SIPEN ) SIPEN 's Legal Services and Advocacy Program was established in 2002 to secure customary land rights , resource use and ownership rights , and the basic human rights of Sarawak 's indigenous peoples . There were no reported injuries to either border guards or OSCE personnel , although the border guards ' camp near Shatli was burned to the ground . Legal specialists say that Malaysia 's law is among the world 's most repressive security acts . For manifestly , if Socrates exists , one of the two propositions ' Socrates is ill ' , ' Socrates is not ill ' , is true , and the other false . The forest canopy is the rain forest 's most crucial layer as it catches the sunlight , moistens the air and contains loads of insects and viruses , many of them unknown . Always traveling alone , wearing outrageous hats to hide a childhood disfigurement , Stark had an obsession with riding blithely into some of the country 's most dangerous regions .