Mighty little force is needed to control a man whose mind has been hoodwinked; contrariwise, no amount of force can control a free man, a man whose mind is free. You can’t conquer a free man; the most you can do is kill him. – Robert A. Heinlein

The real voyage of discovery consists not in seeking new lands but seeing with new eyes. – Marcel Proust

The eye sees only what the mind is prepared to comprehend. –  Henri Bergson

Albert Einstein:

Reality is merely an illusion, albeit a very persistent one.

When we all think alike no one thinks very much.

Imagination is more important than knowledge.

In light of knowledge attained, the happy achievement seems almost a matter of course, and any intelligent student can grasp it without too much trouble. But the years of anxious searching in the dark, with their intense longing, their alterations of confidence and exhaustion and the final emergence into the light — only those who have experienced it can understand it.

Evelyn Underhill:

All creation has purpose. It looks towards perfection.

It is far easier, though not very easy, to develop and preserve a spiritual outlook on life than it is to make our everyday actions harmonize with that spiritual outlook. For though we may renounce the world for ourselves, refuse the attempt to get anything out of it, we have to accept it as the sphere in which we are to co-operate with the Spirit, and try to do the Will.

Mohandas K. Ghandi:

The way of peace is the way of truth.  Truthfulness is even more important than peacefulness.  Indeed, lying is the mother of violence.  A truthful man cannot long remain violent.  He will perceive in the course of his search that he has no need to be violent and he will further discover that so long as there is the slightest trace of violence in him, he will fail to find the truth he is searching.

You must be the change you want to see in the world.

I believe in the fundamental truth of all great religions of the world.  I believe that they are all God-given and I believe that they were necessary for the people to who these religions were revealed.  And I believe that if only we could all of us read the scriptures of the different faiths from the standpoint of the followers of these faiths, we should find that they were at the bottom all one and were all helpful to one another.

By three methods we may learn wisdom: First, by reflection, which is noblest; second, by imitation, which is easiest; and third by experience, which is the bitterest. – Confucius