I love Herakleitos. Here are some quotes.*
Fragment 5: Our understanding of the greatest matters will never be complete.
57: Many people learn nothing from what they see and experience, nor do they understand what they hear explained, but imagine that they have.
61: Men are not intelligent, the gods are intelligent.
63: The gods presence in the world goes unnoticed by men who do not believe in the gods.
72: Fire catches up with everything, in time.
74: There are gods here too.
79: There is a madness in the Sybill’s voice, her words are gloomy, ugly, and rough, but they are true for a thousand years, because a god speaks through her.
*From Guy Davenport’s translations in 7 Greeks (New Directions).