The place to improve the world is first in one's own heart and head and hands.
The pleasantest things in the world are pleasant thoughts: and the great art of life is to have as many of them as possible.
The significant problems we face in life can not be solved at the same level of thinking we were at when we created them.
The universe is change; our life is what our thoughts make it.
The whole of science is nothing more than a refinement of everyday thinking.
Laurence J. Peter
There are two kinds of failures: those who thought and never did, and those who did and never thought.
Isaac Bashevis Singer
There is great treasure there behind our skull and this is true about all of us. This little treasure has great, great powers, and I would say we only have learned a very, very small part of what it can do.
There is no man living who isn't capable of doing more than he thinks he can do.
Think and speak the beautiful only.
Think left and think right and think low and think high. Oh, the thinks you can think up if only you try!