Origin

The character 哲 combines a sound hint with a meaning classifier. The top component 折 suggests the pronunciation テツ (tetsu), while the bottom component 口 is a classifier that marks this as a word related to speech or the mouth. Together, they create a character that refers to someone who speaks with clarity and wisdom — someone who is insightful and clear-thinking, which led to the meaning philosophy. The image of clear speech from the mouth eventually generalized to mean both philosophy and the quality of being perceptive or clear.