Nearly every man who develops an idea works it up to the point where it looks impossible, and then he gets discouraged. That's not the place to become discouraged.

Shall hope prevail where clamorous hate is a rite?

Some mischievous people always there. Last several thousand years, always there. In future, also.

Both oligarch and tyrant mistrust the people, and therefore deprive them of their arms.

I cannot discover that anyone knows enough to say definitely what is and what is not possible. 

Early to bed and early to rise makes a man healthy, wealthy and wise. 

I have gained this from philosophy: that I do without being commanded what others do only from fear of the law.

Although personally I am quite content with existing explosives, I feel we must not stand in the path of improvement. 

The one exclusive sign of thorough knowledge is the power of teaching.

 The weak loo for scapegoats. The strong defend and justify their actions.

The flight of our mind is restricted by our conditioning.

Without surprises life could be boring.