The Tajiks are the principal ethnic group in most of Tajikistan, as well as in northern and western Afghanistan, though there are more Tajiks in Afghanistan than in Tajikistan.
There are fully forty towers, which are lofty and well built, the largest of which has fifty steps leading to its main body, and is higher than the tower of the principal tower of the church at Seville. Hernando Cortes
There are three principal means of acquiring knowledge... observation of nature, reflection, and experimentation. Observation collects facts; reflection combines them; experimentation verifies the result of that combination. Denis Diderot
There are thus great swathes of the past where understanding is more important and reputable than judgement, because the principal actors performed in line with the ideas and values of that time, not of ours. Douglas Hurd
Those who have heard or read anything from me on the subject, know that one of the principal points insisted on is, the forming of societies or any other artificial combinations IS the first, greatest, and most fatal mistake ever committed by legislators and by reformers. Josiah Warren
Time passed by. I had furnished steam hammers to the principal foundries in England. I had sent them abroad, even to Russia. At length it became known to the Lords of the Admiralty that a new power in forging had been introduced. James Nasmyth
What interests me is the sense of the darkness that we carry within us, the darkness that's akin to one of the principal subjects of the sublime - terror. Anish Kapoor