列宁一生总是那样刻苦学习，不论是在紧张的革命斗争中，还是在黑暗的监狱里。１８９５ 年年底，列宁被捕入狱。在狱中，他依然是抓紧分秒写作和学习。沙俄时代的监狱规定不准写字。机智过人的列宁想出了一个好主意：牛奶当“墨水”，面包做“墨水瓶”把字悄悄写在旧书报 Lenin always diligently studied in his life, whether in a tense revolutionary struggle or in a dark prison. By the end of 1895, Lenin was arrested. In prison, he still seize every minute of writing and learning. Tsarist Russia's prison rules prohibit writing. The clever Lenin came up with a good idea: milk as “ink”, bread as “ink bottle” put the word quietly written in the old newspaper