A person who never made a mistake never tried anything new.
One may say the eternal mystery of the world is its comprehensibility.
There are only two ways to live your life. One is as though nothing is a miracle. The other is as though everything is a miracle.
Anyone who doesn’t take truth seriously in small matters cannot be trusted in large ones either.
Great ideas often receive violent opposition from mediocre minds.
Logic will get you from A to B. Imagination will take you everywhere.
Setting an example is not the main means of influencing another, it is the only means.
In the middle of every difficulty lies opportunity.
If you can’t explain it simply, you don’t understand it well enough.
We cannot solve our problems with the same thinking we used when we created them.