BASI® philosophy BASI® has always remained faithful to the art, science and, above all, the work of Joseph and Clara Pilates. Since its founding in 1989, BASI® has been an apprentice with the aim of setting a professional standard according to this method and philosophy. We are committed to educating teachers on a level that can sustain and protect the Pilates gift. BASI® includes integrity, clear guidelines, and faith in the power of each and every one of the words and concepts that we have internalized. If you want to achieve this challenging and ultimately rewarding path, we want to achieve this goal: BASI® will provide you with the right knowledge.