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The hardest thing to see is what is in front of your eyes.

The human mind will not be confined to any limits.

The soul that sees beauty may sometimes walk alone.

Thinking is easy, acting is difficult, and to put one's thoughts into action is the most difficult thing in the world.

Thinking is more interesting than knowing, but less interesting than looking.

This is the highest wisdom that I own; freedom and life are earned by those alone who conquer them each day anew.

Those who hope for no other life are dead even for this.

What is not started today is never finished tomorrow.