As a Czech myself, I'd say Czechs are a very meek and peaceful nation. They can't even dislodge the thieving politicians who impoverish the country for 20 years and neither they can give firm limits to rowdy Gypsy communities. (however this creates certain bitterness and passive tolerance to racists) Czechs are very resourceful, they have "golden hands", which shows on many technical inventions and makeshift solutions, but also sadly on many financial scams. Czechs are relatively tolerant or lukewarm, they generally don't care who goes to hell, or they see religion as a very private thing. They don't drag it into the filthy pit of politics, that would be dirty.
One thing Americans told me about us, is that Czechs are very hospitable. An American may put a guest at the hotel, so they are both comfortable. A Czech will accomodate you at his home, because leaving a guest to be robbed by hotel prices would be impolite. And yes, they say Czechs are thrifty.
For more insights about Czechs see the blog girlinczechland dot wordpress dot com.