The lineage of a hero who made the history of his country during its most critical period, and whose labors constitute its hope for the future, must be more than a simple list of an ascending line. The blood which flowed in his veins must be traced generation by generation, the better to understand the man, but at the same time the causes leading to the conditions of his times must be noted, step by step, in order to give a better understanding of the environment in which he lived and labored.The study of the growth of free ideas is now in the days of our democracy the most important feature of Philippine history; hitherto this history has consisted of little more than lists of governors, their term of office, and of the recital of such incidents as were considered to redound to the glory of Spain, or could be so twisted and misrepresented as to make them appear to do so. It rarely occurred to former historians that the lamp of experience might prove a light for the feet of future generations, and the mistakes of the past were usually ignored or passed over, thus leaving the way open for repeating the old errors. But profit, not pride, should be the object of the study of the past, and our historians of today very largely concern themselves with mistakes in policy and defects of system; fortunately for them such critical investigation under our changed conditions does not involve the discomfort and danger that attended it in the days of Doctor Rizal.