The Greeks, with their truly healthy culture, have once and for all justified philosophy simply by having engaged in it, and having engaged in it more fully than any other people.
What verse is for the poet, dialectical thinking is for the philosopher. He grasps for it in order to get hold of his own enchantment, in order to perpetuate it.
We often confuse spiritual knowledge with spiritual attainment. Spirituality is not a matter of knowing scriptures and engaging in philosophical discussions. It is a matter of heart culture, of unmeasurable strength.