Two centuries ago, the great German poet Goethe said: "The hardest thing to see is what is in front of your eyes."
It's as true today as it was then.
The difference between Hamas and Israel couldn't be greater, yet you wouldn't know it when listening to some observers.
For the Non-Aligned Movement, it's all about Gaza's innocence and Israel's guilt. One fine day, with nothing else to do but consider how to provoke peaceful, serene Hamas-ruled Gaza, the big, bad Israelis decided to attack.
For a fair share of the media, it's above all a story of Palestinian suffering at the hands of Israel's military machine.
For the protesters in Frankfurt, Germany, on Saturday, it was about equating Israel to Nazi Germany.
It's a perfect illustration of reverse causality. Hamas triggered a war, but that's long since forgotten, if ever it was remembered. The focus now is only on the suffering of those who are responsible for the conflict in the first place.
Indeed, Goethe was right. There are those who can't, or won't, see what's right in front of them.
Ideological blinders get in the way. Or a failure of imagination about the true nature of Hamas. Or a gullibility that allows people to believe whatever the Hamas propaganda machine churns out. Or, in some cases, downright hostility to anything that Israel, the Jewish state, does.
It's high time for moral clarity, not moral fog.
Hamas is a terrorist organization. That's its official designation by the United States, European Union, Australia, Canada and others.
Israel is a democratic country with an independent judiciary, the rule of law, free and fair elections, and a robust civil society.
Hamas is anti-Western, anti-Christian (and, not surprisingly, anti-Semitic), anti-gay, misogynist and anti-intellectual.
Israel is the exact opposite.
Hamas has territorial ambitions on Israel. In fact, that's putting it too mildly: it would like to replace Israel in its entirety with a Muslim Brotherhood-ruled state.
Israel has no territorial ambitions on Hamas-ruled Gaza. To the contrary, Israel left it totally nine years ago, with the hope of never having to return.
Hamas has a vested interest in using its Gaza base for permanent confrontation with Israel.
Israel, which, alas, can't change its geography, has a vested interest in a peaceful, moderate, and developing state on its border.
Hamas, the sole ruler of Gaza since 2007, has used the last seven years to smuggle in weaponry and develop military punch, rather than building the foundation of a responsible state.
Knowing this arsenal has been stockpiled for the sole purpose of being used against it, Israel seeks, as any nation would, to prevent Hamas from attaining its lethal goal.
Hamas has no compunction about deploying terrorist cells and weapons in civilian population centers in Gaza, fully aware that Israel would have no choice but to appear to be targeting "innocent" people.
Israel goes to unprecedented lengths to avoid falling into the Hamas trap, even phoning and dropping leaflets in advance to warn civilians to leave target areas.
Hamas cynically tells the civilian population to stay put, not to react to Israeli warnings about imminent strikes. The more Palestinian casualties, the better, as far as Hamas is concerned.
Israel makes every effort to alert its entire population, Jewish, Christian, and Muslim, to Hamas missile strikes and move people into shelters as quickly as possible.
Hamas uses mosques for storing arms.
Israel uses houses of worship, including mosques, solely for prayer.
Hamas uses schools for weapons depots.
Israel uses schools solely to educate its children, Jewish, Christian, and Muslim.
Hamas uses hospitals as terrorist redoubts.
Israel uses its hospitals solely to cure the ill and injured, including residents of Gaza who can't find adequate care there.
Hamas aspires to kill as many Israelis as possible, with rockets fired indiscriminately in all directions.
Israel seeks out only the Hamas terrorist infrastructure, and has aborted many operations when the risks of civilian casualties were too great.
Hamas, as the record amply shows, has no compunction about falsifying information, doctoring photos, staging scenes, and inflating numbers to make its case to the outside world.
Israel, by contrast, goes to great lengths, even to the point of sometimes losing the edge in the "media race," to verify information that it presents about its operations.
Hamas supporters explode in paroxysms of glee when Israeli targets are hit.
Israelis don't honk horns, shoot in the air, and pass out candy for doing what they wished they didn't have to do in the first place, and voice regret when the inevitable mistakes in warfare occur.
Hamas wouldn't know how to spell the words "international humanitarian law," much less adhere to it.
Israel's defense forces have specialists in international humanitarian law assigned to every unit in an effort to ensure maximum compliance.
Hamas shouts from the rooftops that Israel is a brutal enemy.
Israel, unlike any other targeted nation in history, is actually providing -- right now -- up to 70 percent of Gaza's electricity and much of its fuel and foodstuffs, even as hundreds of rockets are fired from Gaza into Israel.
Hamas celebrates death, something few Westerners can understand.
Israel celebrates life, something all Westerners should understand.