Timeless Wisdom. I am confident that the habits that Covey outlines in these two books will still be relevant 50 years from now. Covey takes the concept of trust, helps us see it birli a business tool and gives us strategies on how to build and rebuild it. Log in https://articlescad.com/hakk-nda-i-dem-mahallesi-matematik-zel-ders-ankara-267664.html