Sanity is only that which is within the frame of reference of conventional thought.
Erich Fromm

I've sometimes thought of marrying - and then I've thought again.
Noel Coward

How frail the human heart must be - a mirrored pool of thought.
Sylvia Plath

Bid, then, the tender light of faith to shine By which alone the mortal heart is led Unto the thinking of the thought divine.
George Santayana

All thought is naught but a footnote to Plato.
George Santayana

Maybe Christmas, the Grinch thought, doesn't come from a store.
Theodor Geisel

Well, knowledge is a fine thing, and mother Eve thought so; but she smarted so severely for hers, that most of her daughters have been afraid of it since.
Abigail Adams

Writing crystallizes thought and thought produces action.
Paul J. Meyer

At first, I didn't realize it was gonna be a character. I just thought I was gonna be doing me.
Larry David

Experience is the child of thought, and thought is the child of action.
Benjamin Disraeli

The oldest, shortest words - "yes" and "no" - are those which require the most thought.
Pythagoras

A thought is an idea in transit.
Pythagoras

I always thought, it would be neat to make the Olympic team.
Michael Phelps

No art can be noble which is incapable of expressing thought, and no art is capable of expressing thought which does not change.
John Ruskin

A little thought and a little kindness are often worth more than a great deal of money.
John Ruskin

To give alms is nothing unless you give thought also.
John Ruskin

We are faced with the paradoxical fact that education has become one of the chief obstacles to intelligence and freedom of thought.
Bertrand Russell

Thought is subversive and revolutionary, destructive and terrible, Thought is merciless to privilege, established institutions, and comfortable habit. Thought is great and swift and free.
Bertrand Russell

Both in thought and in feeling, even though time be real, to realise the unimportance of time is the gate of wisdom.
Bertrand Russell

The greatest weapon against stress is our ability to choose one thought over another.
William James