We shall require a substantially new manner of thinking if
mankind is to survive.

We shall require a substantially new manner of thinking if
mankind is to survive.

Small is the number of people who see with their eyes and think
with their minds.

Small is the number of people who see with their eyes and think
with their minds.

...to point at the moon a finger is needed, but woe to those who take the finger for the moon...

...to point at the moon a finger is needed, but woe to those who take the finger for the moon...

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

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

A man thinking or working is always alone, let him be where he
will.

A man thinking or working is always alone, let him be where he
will.

An Englishman thinks seated; a Frenchman, standing; an American, pacing; an irishman, afterward.

An Englishman thinks seated; a Frenchman, standing; an American, pacing; an irishman, afterward.

Think for yourselves and let others enjoy the privilege to do so, too

Think for yourselves and let others enjoy the privilege to do so, too

A man is not idle because he is absorbed in thought. There is a visible labor and an invisible labor.

A man is not idle because he is absorbed in thought. There is a visible labor and an invisible labor.

Clear thinking requires courage rather than intelligence.

Clear thinking requires courage rather than intelligence.