Clear thinking requires courage rather than intelligence.

Clear thinking requires courage rather than intelligence.

A man is but the product of his thoughts what he thinks, he becomes.

A man is but the product of his thoughts what he thinks, he becomes.

It is human nature to think wisely and to act in an absurd fashion.

It is human nature to think wisely and to act in an absurd fashion.

One must live the way one thinks or end up thinking the way one has lived.

One must live the way one thinks or end up thinking the way one has lived.

Those who know how to think need no teachers.

Those who know how to think need no teachers.

Whether you think you can, or you think you can't--you're right.

Whether you think you can, or you think you can't--you're right.

Sometimes people mistake the way I talk for what I am thinking.

Sometimes people mistake the way I talk for what I am thinking.

What we think, we become.

What we think, we become.

It is neither good nor bad, but thinking makes it so.

It is neither good nor bad, but thinking makes it so.