A lot of professionals are crackpots.
You see, dancers are quite mature people because they start performing so early. They become professionals when they start to take everyday classes.
Amateurs study tactics; professionals study logistics.
I love mixing amateurs and professionals.
Music is too important to be left to professionals.
1 out of every 3 professionals on the planet is on LinkedIn.
We do not need to be shoemakers to know if our shoes fit, and just as little have we any need to be professionals to acquire knowledge of matters of universal interest.
We are going to see a tremendous number of health professionals retire over the next 8-10 years. We are not doing nearly enough to deal with this problem.
I didn't notice I was being set upon by a pickpocket, which I am glad of, because I like to work only with professionals.