First of all, farmers should work with universities and research institutions in the country, and hopefully with the government.

Recognizing that sustainable development, democracy and peace are indivisible is an idea whose time has come... Today we are faced with a challenge that calls for a shift in our thinking, so that humanity stops threatening its life-support system. We are called to assist the Earth to heal her wounds and in the process heal our own - indeed, to embrace the whole of creation in all its diversity, beauty and wonder.

If Africa is left behind, she is going to continue pumping greenhouse gases into the atmosphere, especially carbon. She's going to continue logging the forests, she's going to continue burning charcoal, she is going to continue practicing agricultural activities that destroy the environment, and sooner or later Africa's problem will become a global problem.

It gradually became clear that the Green Belt Movement's work with communities to repair the degraded environment could not be done effectively without participants embracing a set of core spiritual values.

When people can't use you, they ridicule what you represent. I was lucky that I understood that, because when one does not understand that, it is very easy to be broken and to be subdued.

We can work together for a better world with men and women of goodwill, those who radiate the intrinsic goodness of humankind. To do so effectively, the world needs a global ethic with values which give meaning to life experiences and, more than religious institutions and dogmas, sustain the non-material dimension of humanity. Mankind's universal values of love, compassion, solidarity, caring and tolerance should form the basis for this global ethic which should permeate culture, politics, trade, religion and philosophy. It should also permeate the extended family of the United Nations.

Now when Nile perch was introduced [into Lake Victoria], I don't think enough research was done; maybe it was done, maybe it was not. But Nile perch is a huge fish. So it ate all the little fish, and it grew into a monster which the local people could not fish with their little boats and their little nets.