Learning without thought is labour lost. Thought without learning is perilous.
Second thoughts are best.
My words fly up, my thoughts remain below.
Words without thoughts never to heaven go.
(Shakespeare : Hamlet)
Thought in the mind hath made us. What we are, by thought was wrought and built. If a man's mind hath evil thoughts, pain comes on him as comes the wheel with the ox behind. If one endures in purity of thought, joy follows him as his shadow sure.
Thoughts are not mere abstractions. They are electrochemical events with physiological consequences. It had been seen on the brain scanner that thoughts are converted to neuropeptides which activate the body cells and influence the body.
Unhappy and distressing thoughts result in increased secretion of acid in the stomach, high B.P. and high heart rate.
Happy and good thoughts produce chemicals which perpetuate a feeling of well-being, reducing the risk of heart attack and cancer.
(Dr. K. L. Chopra : Chairman - Heart Care Foundation of India)
The great danger with the masses is not right thought or wrong thought but the utter absence of thought.
(S. Radhakrishnan : The Recovery of Faith)
Speech was given to man to disguise his thoughts.
(Talleyrand : 1754-1838)
Our sincerest laughter
With some pain is fraught
Our sweetest songs are those
that tell of saddest thought.
(Shelley : To a Skylark)
Men use thought only to justify their wrong-doing and words only to conceal their thoughts.
To me the meanest flower that blows can give
Thoughts that do often lie too deep for tears.
Men fear thought as they fear nothing else on earth - more than ruin - more ever than death. Thought is subversive and revolutionary, destructive and terrible, thought is merciless to privilege, established institutions and comfortable habit. Thought looks into the pit of hell and is not afraid. Thought is great and swift and free, the light of the world and the chief glory of man.
Someone who thinks logically is a nice contrast to the real world.