Every thought is a seed. If you plant crab apples don't count on harvesting golden Delicious .
Vacant minds must have their uses, yet it seems a pity to waste first-class bodies on them.
Tell your boss what you think of him and the truth shall set you free.
The brain that bubbles with phrases has hard work to collect its thoughts.
No man can ever be greater than his loftiest thoughts.
A conclusion is the place where you got tired of thinking.
Think twice before you speak, then say it to yourself first.
Thinking things has been done through the ages; knowing things remains to be done.
Thinking is only a process of talking to yourself.
Think all you speak, but speak not all you think.
Some have half-baked ideas because their ideals are not heated up enough.
To know the true reality of yourself, you must be aware not only of your conscious thoughts, but also of your unconscious prejudices, bias and habits.
The reason there are so few good talkers in public is that there are so few thinkers in private.
When someone you greatly admire and respect appears to be thinking deep thoughts, they are probably thinking about lunch.