Doubt is the origin of wisdom

Thoughts without content are empty, intuitions without concepts are blind.

Where there is anger, there is always pain underneath.

The smaller the mind, the greater the conceit.

Knowing yourself is the beginning of all wisdom.

Stupidity is a talent for misconception.

What you're thinking is what you're becoming.

If you're happy, don't worry you'll get over it.

Those who cannot work with their hearts achieve but a hollow, half-hearted success that breeds bitterness all around.

Science may set limits to knowledge, but should not set limits to imagination.

It is easy to be brave at a safe distance.

A perfection of means, and confusion of aims, seems to be our main problem.

Criticize the act, not the person.

Let there be spaces in your togetherness.

No act of kindness, no matter how small, is ever wasted.

To be one, to be united is a great thing. But to respect the right to be different is maybe even greater.

Medicine heals diseases of the body, wisdom frees the soul from passions.

How often I found where I should be going only by setting out for somewhere else.

When you judge another, you do not define them, you define yourself.

Wisdom is not the product of schooling, but of the lifelong attempt to acquire it.

Adapt what is useful, reject what is useless, and add what is specifically your own.