The independence of Isabelle Stengers' philosophical work is measured by a risky marriage of the heterogeneous: speculation and construction, science and politics, cosmology and ecology. On one side, there is the engagement with the late work of Deleuze and Guattari and a profound re-reading of Alfred N. Whitehead's process philosophy; on the other, a historical and political perspective on the sciences: from alchemy through Galileo to more recent biology and physics. In the midst of the war of sciences, a voice of diplomacy emerges. Its primary concern is to preserve the challenges and risks of thinking and acting. Thus, it is not a new reductionism, but rather an additional abstraction, a thought adventure that smoothly transitions into a new form of politics.