Albert Einstein

In the middle of every difficulty lies opportunity.

Try not to become a man of success, but rather try to become a man of value.

The world as we have created it is a process of our thinking. It cannot be changed without changing our thinking.

The measure of intelligence is the ability to change.

Weakness of attitude becomes weakness of character.

The important thing is not to stop questioning. Curiosity has its own reason for existing.

If we knew what it was we were doing, it would not be called research, would it?

Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.

We can not solve our problems with the same level of thinking that created them.

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