It was, however, the usage of Franz Brentano (and, as he later acknowledged, Ernst Mach[6]) that would prove definitive for Husserl.[14] From Brentano, Husserl took the conviction that philosophy must commit itself to description of what is "given in direct 'self-evidence'."[15]
Husserl wrt phenomenology based himself on Franz Brentano and Ernst Mach . p7 Moran, Dermot (2000). Introduction to Phenomenology. Routledge.