“We are shareholders in the truth whenever we think. But thought is and must be, by its very essence, dialectical. Being a shareholder, the individual mind never owns the whole capital of truth. We are thrown on others; our thought provokes other and contrary thought! On the bare physical plane one individual or group can easily cope with the life of many other groups and individuals: indifference and peaceful equilibrium are possible at that level. But thought changes the peace of the world. Thought is always provoking its own contradiction. This eternal dialogue of thoughts and principles organizes humanity into schools of thought. The parties of policy, the armies of war, and the classes of interest, are embodiments of this power of the mind to act like a sword, to distinguish and to polarize, to live by paradox and conflict, by dialectical revolutions.”
from Out of Revolution, page 152